Exploring & Anatomy Physiology in the Laboratory Third Edition Erin C. Amerman 925 W. Kenyon Avenue, Unit 12 Englewood, CO 80110 www.morton-pub.com Book Team President David M. Ferguson Senior Acquisitions Editor Marta R. Martins Associate Project Editor Sarah D. Thomas Assistant Editor Trina Lambert Production Manager Will Kelley Interior Design and Composition Joanne Saliger Production Assistant Sarah Bailey Cover Imagineering Media Services, Inc. Illustrations Imagineering Media Services, Inc. Dedication For Doug Morton, whose support of my vision, commitment to this book, and belief in the value of higher education to transform lives will not be forgotten. For Elise, who was 12 weeks old when I dedicated my first book to her, and is 12 years old now, and remains my favorite reason for missing deadlines. Copyright © 2017 by Morton Publishing Company All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the publisher. Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 ISBN-10: 1-61731-620-2 ISBN-13: 978-1-61731-620-3 Library of Congress Control Number: 2016959822 Xxxxxxxxxx n UNIT XX n ii Preface They say that the third edition of a textbook is when it we further expanded the art program with more really comes into its own. Having just arrived at the than 250 new and improved figures. This ensures third edition of Exploring Anatomy and Physiology in the that all key structures are clearly shown, often Laboratory, or EAPL, I’m inclined to believe that there is from multiple views. We are also excited to be able some truth in this saying. to add select photos of anatomical models for the It feels like just yesterday that I first met David first time. Ferguson and we discussed our shared vision for an ■■ Updated quiz questions. Even the best quiz questions activity-based lab manual that would keep students can grow stale after a while. With that in mind, the engaged, improve their lab grades, and solve teaching “Check Your Recall” and “Check Your Understand- problems. Fast forward to thirteen years later, and David ing” questions have been updated, and approximately is now the president of Morton Publishing Company, and 70 to 80 percent of the questions have been altered together we have published four different lab manuals, or replaced in each unit. including EAPL. ■■ Fine-tuned activities. Many of the procedures or We started with the text Exercises for the Anatomy and activities were altered to make them more time Physiology Laboratory, a simple black and white manual efficient. In addition, certain exercises that just with focused activities. Exercises was enthusi astically weren’t working were cut. These were replaced received, and we set out to produce an expanded, full- with other, better exercises. For example, we added color version of the exercises that included more explana- drawing activities in most units, as research has tions, new activities, a complete art program, and new shown that students retain information better pedagogy. This book became the first edition of EAPL. when they draw the structures they are studying. Like its predecessor, it was warmly received. The second edition of EAPL was dramatically ■■ Pronunciation keys. Speaking aloud is an important improved from the first, largely thanks to the feedback learning modality, but it’s difficult to do if students of professors. And now we enter the third edition, armed don’t know how to say the words correctly. With with still more feedback, and more experience, and it has that in mind, we added phonetic pronunciation hopefully led us to an even more dramatically improved keys to anatomical and physiological terms. We book. As you peruse the new third edition, please take note have also placed a pronunciation guide at the front of the following updates: of the book so students may quickly look up a word as needed. ■■ Added text narrative to make EAPL a self-contained lab manual. One of the most frequent requests we There are a number of other improvements we made received was to add more information to EAPL so as well, including several new Hints & Tips boxes, re- that students didn’t need an additional textbook to organizing Model Inventories to match the order of terms complete the activities. We heard your requests, and presented in the text, numbering the procedures to make responded. Every effort was made in the revisions them easier to assign, and replacing many of the histology for this edition to ensure that EAPL is a self- images with higher-quality micrographs. We hope that you contained lab manual. The text narrative now enjoy the third edition of EAPL and find that it has indeed defines and explains all key terms so that your “come into its own.” Please continue to share your feedback students do not need outside sources when with us—we are always looking for ways that we can working with the manual. improve. ■■ Expanded and improved art program. In line with our goal of making EAPL a self-contained textbook, — Erin Amerman iii n Exploring Anatomy & Physiology in the Laboratory iii Acknowledgments Textbooks are an enormous undertaking. Many people were integral to the production and development of this edition, and I would like to take this brief opportunity to express my gratitude. First and foremost I would like to thank my family and friends, particularly my daughter Elise, my mother Cathy, and my husband Chris. Without your unwavering support and patience, none of my work would be possible. I’d also like to thank Dr. Lourdes Norman-McKay, whose advice, wisdom, and friendship helps to keep me (mostly) sane. Lastly, I can’t forget my animals: my dogs, who never fail to bark and howl during phone meetings, and my cats, who always manage to be completely in the way of whatever I’m doing. Next I would like to extend my gratitude to the talented book team with whom I was fortunate enough to work: Joanne Saliger, who expertly designed and produced the book as she always does; Trina Lambert, who skillfully copyedited the text; Sarah Thomas, who coordinated everything as the associate project editor; Marta Martins, who oversaw the project as the acquisitions editor in Portuguese, French, and English; Elizabeth Budd, who proofread the text; Carolyn Acheson, who provided indexing services; the team at Imagineering, who provided the beautiful illustrations; and John Crawley, Michael Leboffe, and Justin Moore, who allowed me to use several of their excellent photos and photomicrographs. I truly appreciate all of your hard work and generosity. I would also like to thank the following reviewers for their invaluable suggestions that helped to improve this edition: b Diana M. Coffman, Lincoln Land Community College b Dr. Shawn Macauley, Muskegon Community College b Angela Corbin, Nicholls State University b Darren Mattone, Muskegon Community College b Dr. Cassy Cozine, University of Saint Mary b John David Matula, Alvin Community College b Molli Crenshaw, Texas Christian University b Justin Moore, American River College b Kathryn A. Durham, R.N., Ph.D., Lorain County b Tommy D. Morgan, Alvin Community College Community College b Dr. Anita Naravane, St. Petersburg College b Jill E. Feinstein, Richland Community College b Michele Robichaux, Nicholls State University b Nancy E. Fitzgerald, M.D., Alvin Community College b Deanne Roopnarine, Nova Southeastern University b Carol Haspel, Ph.D., Laguardia Community College b Amy Fenech Sandy, Columbus Technical College in b Stephanie Ann Havemann, PhD., Alvin Community Columbus, GA College b Lori Smith, American River College b Elizabeth Hodgson, York College of Pennsylvania b Valory Thatcher, Mt. Hood Community College b Steven Leadon, Durham Technical Community College b Cathy Whiting, Gainesville State College b Eddie Lunsford, Southwestern Community College The acknowledgements would be incomplete without thanking Doug Morton, to whom I will be eternally grateful for adding me to the Morton family. And finally, I extend a special thank you to President David Ferguson for his support, patience, friendship, Broncos games, and willingness to go hiking with me to look for snakes even if he is unwilling to actually touch a snake himself. About the Author Erin C. Amerman has been involved in anatomy and physiology education for over 16 years as an author and professor, currently at Florida State College at Jacksonville in Jacksonville, Florida. She received a B.S. in Cellular and Molecular Biology from the University of West Florida and a Doctorate in Podiatric Medicine from Des Moines University. She is the author of six textbooks on the subject of anatomy and physiology, four of which are with Morton Publishing Company. iv n Exploring Anatomy & Physiology in the Laboratory Xxxxxxxxxx n UNIT XX n iv Be Prepared Objectives set learning goals to prepare students for what they are expected to Pre-Lab Exercise 17-3 Anatomy of the Heart know after completing the lab. The num- Label and color the three views of the heart in Figure 17.2 with the terms from Exercise 17-1 (p. 451). Use your text and Exercise 17-1 in this unit for reference. bered objectives also aid in the review of material. A Pre-Lab Exercises encourage students to actively prepare for the lab by defining key terms, doing labeling and coloring exercises to learn anatom ical structures, and reviewing vital material from previous units, saving instructors from having to spend extra time reviewing material from B 17 the lecture. These exercises have been updated with new terms and new figures and can be completed using information available in the lab manual. By asking students to draw their own leader lines and write out definitions, the pre-lab exercises are designed to help students FIGURE 17.2 Heart: (A) anterior view; (B) retain information and build a deeper posterior view; (continues) understanding of the content. 448 n Exploring Anatomy & Physiology in the Laboratory Cardiovascular System—Part I: The Heart n UNIT 17 n 449 Name ____________________________________________________ Section _________________ Date ______________ PRE-LAB EXERCISES Complete the following exercises prior to coming to lab, using this lab manual and your textbook for reference. PComrpleete- tLhea fobllow iengx exeercrisecs priiosr teo csoming to lab, using your textbook and lab manual for reference. LFS.YP_Tie_aobrer_yueror_ oe m-u_sKLurhs_ ses ao_p ypo_bua e_fl rTd _riEtei e_chbxt_raaeeem_r l drf _Hpasci_ueme_imrs_aiielc_r ia a__ tr1 r__Wd __wi__u7ai__mtl__hl- __ t___1h___e___ f___o___l___lo___w______i___n___g___ t___e___r___m___s___ ___b___e___fo___r___e___ ___co______m___i___n___gD___ t___eo___f i___lna___ib___ti.___o___n_______________________________________________________________________________________ P.YpABBCEPNIC oToHcnauhaoonreilzsfet ndauifieyrcem___o pe rm m sKnor-bci hce loLoeaao nvraylu___a d cR ll beoTdevne aabtErc ___lebemtxi oDnofnatenesTcAtAsAr demoo bfihh___ rnls ounccseaciicnlolotsi etaitimldtmauiniss o oarptt___scenen on ariawsuoaot nsnfni1rt ut de th___bircaco ee ooontcc n mhatotcrefpeph a___ p aowafiuaolnbnianti lglcnledsheoe___g oss dw ol uafe tiitcibn nthiin y___dgoahpe n stetuaH’ esrt tr fmrm___oaaao e lrslkftiwm zaobaeri l___enmailh nfgkyoo i trd sra aaeyrlaok clctxnoiaody rsl lme.i sa laie iBocnncaniadtdgnss r i dtteoi( otpOsyr o s;elHs t adi)stbut dahr.wielnvtehne ier nnoenggerd r god abauli iltpsutws iemvote leavuloi e sktldfo mgp obaruiaanmrsps i teewpar haa ambtpsnla eeudorrlet f,, i tactasnonh nddset a ahwhltiaynh,vdioe nsrw goea gh he aincypq hdHui ro eoin>sogue7sn ______________________________________________________________________________________________________ Serous visceral pericardium _____________________________________________________________________________ ______________________________________________________________________________________________________ Pericardial cavity ______________________________________________________________________________________ ______________________________________________________________________________________________________ Myocardium __________________________________________________________________________________________ 17 ______________________________________________________________________________________________________ Endocardium _________________________________________________________________________________________ ______________________________________________________________________________________________________ Structures of the Heart Atria (right and left) ___________________________________________________________________________________ ______________________________________________________________________________________________________ Ventricles (right and left) _______________________________________________________________________________ ______________________________________________________________________________________________________ Tricuspid valve ________________________________________________________________________________________ ______________________________________________________________________________________________________ Mitral (bicuspid) valve __________________________________________________________________________________ ______________________________________________________________________________________________________ Pulmonary valve _______________________________________________________________________________________ ______________________________________________________________________________________________________ Aortic valve ___________________________________________________________________________________________ ______________________________________________________________________________________________________ 446 n Exploring Anatomy & Physiology in the Laboratory Cardiovascular System—Part I: The Heart n UNIT 17 n 447 v Be Organized Model Inventories provide organized and easily referenced lists of anatomical structures students are responsible for identifying. These lists help students catalog the specimens they see in the lab. The emphasis on examination, description, pronunciation, and writing the names of anatomical structures encourages students to be actively involved in the learning process and allows them to better retain the material. valves. The three-cusped tricuspid valve is between the right atrium and right ventricle, and the two-cusped mitral (MY-trul) or bicuspid valve is between the left atrium and left ventricle. Each cusp of the atrioventricular valves is attached to collagenous “strings” called chordae tendineae (KOHR-dee tin-din-EE-ee), which are themselves attached to muscles within the ventricular wall called papillary muscles. When the ventricles contract, the papillary muscles pull the chordae tendineae taut, which puts tension on the cusps and prevents them from everting into the atria, a condition called prolapse. Second are the valves between the ventricles and their arteries, which are called semilunar valves. The pulmonary valve sits between the right ventricle and the pulmonary trunk, and the aortic valve sits between the left ventricle and the aorta. Note that there are no chordae tendineae or papillary muscles attached to the semilunar valves. Procedure 1 Model Inventory for the Heart Identify the following structures of the heart on models and diagrams, using your textbook and this unit for reference. As you examine the anatomical models and diagrams, record the name of the model and the structures you were able to identify on the model inventory in Table 17.1. When you have completed the activity, answer Check Your Understanding questions 1 through 3 (p. 467). 1. General structures 4. Cardiac veins a. Mediastinum a. Small cardiac vein b. Apex of the heart b. Middle cardiac vein c. Base of the heart c. Great cardiac vein d. Atrioventricular sulcus d. Coronary sinus e. Interventricular sulcus 5. Interatrial septum f. Pericardium a. Fossa ovalis (1) Fibrous pericardium 6. Interventricular septum (2) Serous pericardium 7. Right atrium (a) Parietal pericardium a. Opening of the superior vena cava (b) Visceral pericardium (epicardium) b. Opening of the inferior vena cava (c) Pericardial cavity c. Opening of the coronary sinus g. Myocardium d. Right auricle 17 h. Endocardium e. Pectinate muscles 2. Great vessels 8. Right ventricle a. Superior vena cava a. Trabeculae carneae b. Inferior vena cava 9. Left atrium cd.. PRuiglmhto annadry l etfrtu pnukl monary arteries ab.. LOepfte naiunrgics loef the pulmonary veins TABLE 17.1 Model Inventory for the Heart e. Pulmonary veins 10. Left ventricle Model/Diagram Structures Identified f. Aorta a. Trabeculae carneae 3. Coronary arteries 11. Atrioventricular valves a. Right coronary artery a. Tricuspid valve b. Right marginal artery b. Mitral valve c. Posterior interventricular artery c. Chordae tendineae d. Left coronary artery d. Papillary muscles e. Anterior interventricular artery 12. Semilunar valves f. Circumflex artery a. Pulmonary valve b. Aortic valve 454 n Exploring Anatomy & Physiology in the Laboratory Cardiovascular System—Part I: The Heart n UNIT 17 n 455 17 456 n Exploring Anatomy & Physiology in the Laboratory Cardiovascular System—Part I: The Heart n UNIT 17 n 457 vi vii Be Focused Illustrations and Photographs in Exploring Anatomy & Physiology in the Laboratory, 3e, were specifically designed to improve student understanding of important concepts and procedural instructions in the laboratory setting. (Many lab manuals simply reproduce art- work and exposition from the related textbook, unnecessarily increasing the redundancy, size, and price of the manual.) With more than 200 new and revised illustrations and photographs, this edition offers a more detailed and realistic view of human anatomy. Almost all of the histology images are new, taken from the best sources of commercially available slides. EXERCISES The cardiovascular system transports oxygen, nutrients, wastes, other solutes, and cells throughout the body. In this unit we begin our exploration of the cardiovascular system with the pump that Psheleacastrtiotin.naetded h aunmda n ddraiyv etso ipt—umthpe mheoarret .t hTahne 8h,e0a0r0t ilsit aer rse omf abrlkoaobdl ea ororguannd, tthiree lbeossdlyy. bInea tthinisg u mniotr we eth eaxna m10in0e,0 t0h0e tainmaetso mpeyr of this remarkable organ, including the blood flow through the heart and the histology of cardiac muscle. The heart is located in the mediastinum and is on average about the Exercise 17-1 bases iizse i tosf f ala ftitsetn (eFdi gp. o1s7te.3riAo)r. sIitds ea (pFeixg .i s1 7it.s3 pBo).i nTthy ei nhfeearriot ri st icpo, manpdo sietsd of four chambers—the small, superior right and left atria and the larger, Anatomy of the Heart inferior right and left ventricles. The chambers are separated visually by grooves on the heart’s surface: The atrioventricular sulcus (ay-tree-oh-ven- MATERIALS TRIK-yoo-lur) is between the atria and ventricles, and the interventricular (cid:31)(cid:31)(cid:31) HPDreiesasseretcr vmtieoodnd heeeqlsauritpment oslauuyltceeurrAesm d si o smy sbotee umlta wcybaeernrea nnos eefte htc heian eltl weFpdieog r tuivhcreeaen r pt1dre7iiruc.i4lmce,as ,rt. chdaeiul lhmeeda (trphte eihs rf -siebuerr-oKrouAusR n-pddeeereid-cu abmryd) .ia uT dmhoe,u ble- (cid:31) Dissection tray anchors the heart to surrounding structures. It is made of dense irregular (cid:31) Water-soluble marking pens or colored collagenous connective tissue that is not very distensible, which helps pencils to prevent the heart from overfilling. The inner layer, called the serous (cid:31) Laminated outline of the heart and lungs pericardium, is itself composed of two layers. The outer portion, called (cid:31) Colored pencils the parietal pericardium, is functionally fused to the fibrous pericardium. Notice that at the edges of the heart, the parietal pericardium folds over on itself to attach to the heart muscle and form the inner layer of the serous membrane called the visceral pericardium, also known as the epicardium. Between the parietal and visceral layers 17 we find a thin layer of serous fluid that occupies a narrow potential space called the pericardial cavity. The fluid within The heart itself is an organ that consists of three tissue layers: the pericardial cavity helps the heart to beat without friction. 1. Epicardium. The epicardium (ep-ih-KAR-dee-um) or visceral pericardium is considered the outermost layer of the heart wall. It consists of a layer of simple squamous epithelial tissue and loose A B FSiebrroouuss ppeerriiccaarrddiiuumm 2. Mconyonceacrtidvieu mtis.s Tuhe.e middle myocardium (my-oh-KAR-dee-um) is the actual muscle of the heart. It consists of cardiac muscle tissue and AortaMediastinum First rib PV(Meiapsyrcoiiceecatraaradrlld ippuiueemmrrii)ccaarrddiiuumm 3. Esitqsnu dfaiobmcraooruudssi usekmpei.tl heTteholienu .imnn cearlmleods et nednodtohcealriudmiu.m It iiss ac otynptien oufo suism wpilteh Superior vena cava PultmruonnkSatreyrnum Pulmonary veins Pericardial activity tLheet ’se nlodookth neoliwum a tl itnhien ge xatlel rbnlaolo adn vaetossmelys oinf tthhee bhoeadryt., shown in Right lung Interventsriuclucluasr Atrioventricular sulcus Endocardium Figure 17.5. As you can see in the figure, the atria receive blood from Fibrous pericardium Base of heart Heart wall Aortic arch Atrioventsriuclucluasr Apex of heart A Ligamentum arteriosum Pericardial( csuatc) Diaphragm oFIGf UthReE 1he7ar.t 4wa lLl.ayers SAuspceerniodri nvgen aao crtaava PLeufltm aotrniuamry trunk FIGURE 17.3 Thoracic cavity: (A) anterior view; (B) left lateral view. Bprualmncohneasr yo fa rrtigehryt Left pulmonary veins 450 n Exploring Anatomy & Physiology in the Laboratory Cardiovascular System—Part I: The Heart n UNIT 17 n 451 RAiugrhict lpe uolmf roignhatr yatrium Circumflex artery veins Right atrium Great cardiac vein Right coronary artery 17 Marginal artery Ainntetervrieonrtricular Small cardiac vein artery Right ventricle Left ventricle B Inferior vena cava Thoracic aorta Apex of heart Aortic arch Left pulmaorntaerryy Superior vena cava Left pulmovneairnys Right pulmonary artery Right pulmonary veins Left atrium cardAlieaufctGr iacvrteelreaiin utomf ICnRofiegrrohiont raa rvtyrei unsmian ucsava FIGUREv i1ew7; (.B5) p Hosetaerrti:o (rA v)i eawn.terior cardiaMci dvdeilne R(inig chot rcoonraornya sruy lcaurtse)ry Left ventricle Posterior interventricular artery (in posterior Apex interventricular sulcus) Right ventricle 452 n Exploring Anatomy & Physiology in the Laboratory Cardiovascular System—Part I: The Heart n UNIT 17 n 453 vi vii Be Active Focused Activities are the guiding philosophy of this lab manual. Students learn best when they are actively engaged in the laboratory. In this manual, students are asked to be active by describing, labeling, writing, coloring, and drawing. 21 new activities have been added to this edition, including a starch solubility exercise, identifying structures of the shoulder joint, muscle fiber contraction, new special senses activities, and many more. Finding the coronary vessels tends to be difficult because the superficial surface of the heart is covered with adipose 5 Insert the scissors into a pulmonary vein. Cut down into the left atrium. Note the structure of the mitral valve, and tissue. To see the coronary vessels, carefully dissect the adipose tissue. draw it in the space provided. What is the function of this valve? How does its structure differ from that of the 2 Locate the superior vena cava. Insert scissors or a scalpel into the superior vena cava and cut down into the right pulmonary and tricuspid valves? amtrainuym f.l aBpesf odroe ymoouv sineeg? o Wn htoa ts tise pth 3e, fnuontcet itohne ostfr uthcitsu vrea lovfe ?the tricuspid valve, and draw it in the space provided. How __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ 6 Cthoicnktnineusse othf et hceu tl eifntt voe tnhter ilcelfet, vaes nsthroicwlen. Nino Fteig tuhree Pultmruonnkary Aorta (cCuuts tpo osfh tohwe maoitrrtaicl vvaallvvee) 3 Ocunt cdeo twhen riingthot tahter iruimgh its v eexnptroisceled,, wcohnicthin iuse the coOropneanriyn gs ionfus infeOriopre vneinnga ocfava Right atrium 1th7e. 1r0ig.h Ht ovewn tdroicelse ?it W cohmy pisa rthe ewreit ah dthifef etrheinckcen?ess of sthhiosw tinm ien iFnicgluudree 1th7e.9 f.o Slltoruwcitnugr:es to locate at _________________________________________ Lauefrtic le ab.. TCrhicourdspaied t venaldvien.eae. Pectinate __________________________________________________________________________________ Ctvhauelvs mep iotrfa l cde... PMEthaneypd ohiolcelcaaaarrrrydtd) im.iuumums. c(lsehsi.ny layer on the inside of moatfru tiushcmel eri ght pOttrruauulcntmftkl ootown a thrye ___________________________________________________________________________________________________________________________ CtLvweeehannfoltdltrridnicaeleeae 17 Ctehnodridnaeea e _________________________________________ Pmaupsicllalery 17 _________________________________________ Cofu tshpes _________________________________________ tricuspid 4 Insert the scissors into the pulmonary trunk. valve _________________________________________ Nanodt ed trhaew s ittr uinc ttuhree sopfa tchee p pruolvmidoenda. rHy ovwal vdeo, es Wthea llr iogfh t Pmaupsicllalery 7 Iunnsteirl ty tohue csacnis ssoeres t ihnet oa othrtei ca voartlvae. .E Dxtreanwd tthhee acourtt ic coOropneanriyn ga rttoeryAvoalrvtiec Trcaabrenceualeae iWt dhiaffte irs stthreu cfutunrcatliloyn f roofm th tihs ev atrlviceu?spid valve? ventricle FIGURE 17.9 Right ventricle of a sheep heart. vsiamlvilea irn t oth teh sep paucelm poronvairdye vda. lIvse i to srt trhuec tmuriatrlalyl more FIGURE 17.10 Left ventricle of a sheep heart. __________________________________________ valve? What is the function of this valve? __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ 458 n Exploring Anatomy & Physiology in the Laboratory Cardiovascular System—Part I: The Heart n UNIT 17 n 459 Tracing Exercises ask students to write step-by-step, turn-by-turn directions to follow substances (blood cells, food molecules, waste by-products, electrical events) through the human body, then trace the substances’ path on a “map” of FIGURE 17.11 Heart, lungs, and pulmonary circulation. the body. These exercises allow students 17 to see the big picture of how the body systems interact and to understand the relationship between structure and function. Hints & Tips sidebars appear through- out the book to help students navigate some of the more difficult topics in A&P. 460 n Exploring Anatomy & Physiology in the Laboratory Cardiovascular System—Part I: The Heart n UNIT 17 n 461 viii ix Be Sure Check Your Progress sections completing each unit ensure that students understand key Name concepts and achieve the learning objectives, Section Date UNIT 17 signaling that they are ready to move on. This Check Your Recall REVIEW new edition features new assessment questions throughout. 1 Label the following parts of the heart on Figure 17.13. Check Your Recall “quizzes” consist of ❑❑❑❑AAnotretarior interventricular artery ❑❑❑❑IPnuflemrioonr avreyn tar ucnavka ❑❑❑❑RSuigphetr icoorr ovennaary c aarvtaery ❑❑Circumflex artery ❑❑Pulmonary veins labeling, fill-in-the-blank, multiple choice, and sequencing questions that test the students’ ability to retain the material they completed in the lab. These sheets can be used as graded lab quizzes and/or to check attendance in the lab. 17 Check Your Understanding “tests” ask students to use the information they have learned to answer critical thinking questions, frequently related to clinical scenarios. The ability to synthesize and apply knowledge is the desired outcome of any A&P course. These FIGURE 17.13 Heart, anterior view. questions check students’ deeper understanding by challenging them to provide answers they cann46o2 t n fExipnloridng Avnateomry &b Phaysitoloigmy in thien Lab oeratiortyher the lab manual Cardiovascular System—Part I: The Heart n UNIT 17 n 463 or the textbook. New Check Your Understanding questions have been added to nearly every unit in this edition. 5 The arteries of the systemic circuit carry ______________ blood, and the arteries of the pulmonary circuit carry Name ______________ blood. ab.. ooxxyyggeennaatteedd;; doexyogxeygneanteadted Section Date 1UN7IT c. deoxygenated; deoxygenated d. deoxygenated; oxygenated Check Your Understanding REVIEW 6 The tricuspid and mitral valves are known as the Critical Thinking and Application Questions a. chordae tendineae. bc.. sceomroinluanrya rv vaalvlvees.s. 1 W lethheanl. tWheh yp edroic yaordui uthmin fkil ltsh wis ictho nbdloitoiodn, iits psoro ddauncgees rao cuosn? d(Hitiinotn: cCaolnlesdid cearr tdhiaec s ttarumcptuornea odfe t, hweh fiicbhr ocuans pbeer ircaapriddiluym .) d. atrioventricular (AV) valves. __________________________________________________________________________________________________ 7 The function of the papillary muscles is to __________________________________________________________________________________________________ a. pull open the semilunar valves. b. pull the chordae tendineae taut. __________________________________________________________________________________________________ c. pull open the atrioventricular valves. __________________________________________________________________________________________________ d. pull the semilunar valves closed. __________________________________________________________________________________________________ 8 Fill in the blanks: The two main branches of the left coronary artery are the __________________________________________________________________________________________________ _____________________________________________ and the _____________________________________________. 2 A condition known as pulmonary hypertension is characterized by high blood pressure in the pulmonary circuit. 9 The main vein that drains the coronary circulation is the Which chamber of the heart would this condition most directly affect, and why? a. superior vena cava. __________________________________________________________________________________________________ b. pulmonary vein. __________________________________________________________________________________________________ 17 c. small cardiac vein. 17 d. coronary sinus. __________________________________________________________________________________________________ __________________________________________________________________________________________________ 10 Fill in the blanks: Cardiac muscle cells are also known as __________________________________. Adjacent __________________________________________________________________________________________________ cells are joined together by _________________________________________, which allow the heart to __________________________________________________________________________________________________ ____________________________________________________. __________________________________________________________________________________________________ 3 Ms. F. visited her physician for a routine physical. During the exam, she explained that over the last two weeks, she had been feeling much more tired than normal and occasionally felt short of breath. Knowing that women usually present with atypical symptoms of a heart attack, her physician ran some diagnostic tests and found that Ms. F. was indeed having a heart attack. a Imaging studies showed that Ms. F. had blockages in both her right marginal artery and her anterior interventricular artery. What parts of the heart would be affected by these blockages? ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ 466 n Exploring Anatomy & Physiology in the Laboratory Cardiovascular System—Part I: The Heart n UNIT 17 n 467 viii ix