HUMAN ANATOMY
6th Edition
ISBN: 9781260210262
Author: SALADIN
Publisher: RENT MCG
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Chapter 20.4, Problem 10BYGO
Answer the following questions to test you understanding of the preceding section.
10.Why is the human heart described as autorhythmic? Where is its pacemaker, and what is it called.
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Sequence of Events Blood Flow Through the Heart
Test your knowledge of the flow of blood through the heart by placing the following cardiac events in the proper
order. The first step has been provided to get you started. Arrange the subsequent events by inserting the numbers
2 through 18 in the spaces provided.
1. Deoxygenated blood flows through the superior and inferior vena cava and into the right atrium.
A. Blood fills the left atrium.
B. The right atrium contracts.
- C. The pulmonary valve closes.
D. Blood leaves the lungs via the pulmonary veins.
E. The left atrium contracts.
F. The pulmonary valve opens.
G. Blood flows into the aorta for distribution throughout the body.
H. The mitral valve closes.
1. The left ventricle contracts.
J. The aortic valve opens.
K. The right ventricle contracts.
L. The tricuspid valve opens.
M. Blood is pumped into the right and left pulmonary arteries and into the lungs.
N. Blood fills the left ventricle.
O. The mitral valve opens.
P. Blood flows…
Puzzle It Out Cardiac Terms
Complete the following crossword puzzle to test your knowledge of terms used in the study of the heart.
10
11
ACROSS
DOWN
1. The heart's inner layer
4. The study of the heart and the treatment of
related disorders
5. Thin layer of squamous epithelial cells covering
the heart's surface
7. Space berween the lungs and beneath the sternum
where the heart resides
2. Unique ability of the cardiac muscle to contract
without nervous stimulation
3. Where the great vessels enter and leave the heart
6. Double-walled sac surrounding the heart and root
of the great vessels
8. The period of cardiac muscle relaxation
11. Two upper chambers of the heart
9. Pointed end of the heart
10. Two lower chambers of the heart
12. Phasc of the cardiac cycle when the ventricles
contract
13. Middle layer of the heart wall
186 Chapter 15 Heart
Illuminate the Truth Capillaries
Highlight the word or phrase that makes cach of the following statements true.
1. Capillaries (are)(are not) evenly distributed throughout the body.
2. The majority of the capillaries in skeletal muscles are (constantly filled with blood)(shut down during periods
of rest).
3. Capillaries (take up)(release) wastes, such as carbon dioxide and ammonia.
4. Water (flows into)(moves into and out of) capillaries.
5. In diffusion, substances move from areas of (greater)(lesser) to (greater)(lesser) concentration.
6. The concentration of oxygen within capillaries is (greater than)(less than) the concentration of oxygen in the
surrounding tissue fluid; therefore, oxygen diffuses (into)(out of) the capillaries.
7. (Osmosis) (Filtration) occurs close to the arterial side of the capillary bed, while (colloid osmotic
pressure)(diffusion) operates toward the venous side.
8. Of all the fluid filtered at the arterial end of the capillary bed. about (85%)(15%) is…
Chapter 20 Solutions
HUMAN ANATOMY
Ch. 20.1 - Answer the following questions to test you...Ch. 20.2 - Parts of the fibrous skeleton sometimes become...Ch. 20.2 - Prob. 3BYGOCh. 20.2 - Prob. 4BYGOCh. 20.2 - Answer the following questions to test you...Ch. 20.3 - Answer the following questions to test you...Ch. 20.3 - Prob. 7BYGOCh. 20.3 - Prob. 8BYGOCh. 20.3 - Answer the following questions to test you...Ch. 20.4 - Why should mitochondria be large and more abundant...
Ch. 20.4 - Answer the following questions to test you...Ch. 20.4 - Answer the following questions to test you...Ch. 20.4 - Prob. 12BYGOCh. 20.4 - Prob. 13BYGOCh. 20.4 - Prob. 14BYGOCh. 20.5 - Answer the following questions to test you...Ch. 20.5 - Answer the following questions to test you...Ch. 20.5 - Prob. 17BYGOCh. 20.5 - Answer the following questions to test you...Ch. 20 - Prob. 20.1.1AYLOCh. 20 - Prob. 20.1.2AYLOCh. 20 - Prob. 20.1.3AYLOCh. 20 - To test your knowledge, discuss the following...Ch. 20 - To test your knowledge, discuss the following...Ch. 20 - Prob. 20.1.6AYLOCh. 20 - Prob. 20.2.1AYLOCh. 20 - Prob. 20.2.2AYLOCh. 20 - Prob. 20.2.3AYLOCh. 20 - Reasons for the differences in muscularity between...Ch. 20 - Prob. 20.2.5AYLOCh. 20 - Prob. 20.2.6AYLOCh. 20 - The names, locations, and anatomy of the two...Ch. 20 - Prob. 20.2.8AYLOCh. 20 - Prob. 20.2.9AYLOCh. 20 - Prob. 20.2.10AYLOCh. 20 - Prob. 20.3.1AYLOCh. 20 - Prob. 20.3.2AYLOCh. 20 - Prob. 20.3.3AYLOCh. 20 - Prob. 20.3.4AYLOCh. 20 - Prob. 20.4.1AYLOCh. 20 - Prob. 20.4.2AYLOCh. 20 - Prob. 20.4.3AYLOCh. 20 - The Coronary Conduction System and Cardiac...Ch. 20 - Prob. 20.4.5AYLOCh. 20 - Prob. 20.5.1AYLOCh. 20 - Prob. 20.5.2AYLOCh. 20 - Prob. 20.5.3AYLOCh. 20 - Prob. 20.5.4AYLOCh. 20 - Prob. 20.5.5AYLOCh. 20 - Prob. 1TYRCh. 20 - To get from the right atrium to the right...Ch. 20 - There is/are_________ pulmonary vein(s) emptying...Ch. 20 - Prob. 4TYRCh. 20 - Prob. 5TYRCh. 20 - These are some of the points that the blood passes...Ch. 20 - The ascending aorta and pulmonary trunk develop...Ch. 20 - Prob. 8TYRCh. 20 - Blood in the anterior interventricular branch of...Ch. 20 - Which of these is not characteristic of the heart...Ch. 20 - Prob. 11TYRCh. 20 - The circulatory route from aorta to the venae...Ch. 20 - The circumflex branch of the left coronary artery...Ch. 20 - The finest passages through which electical...Ch. 20 - Electrical signal pass quickly from one...Ch. 20 - The abnormal bulging of the left AV valve into the...Ch. 20 - Prob. 17TYRCh. 20 - Prob. 18TYRCh. 20 - Prob. 19TYRCh. 20 - Prob. 20TYRCh. 20 - Prob. 1BYMVCh. 20 - Prob. 2BYMVCh. 20 - Prob. 3BYMVCh. 20 - Prob. 4BYMVCh. 20 - Prob. 5BYMVCh. 20 - Prob. 6BYMVCh. 20 - Prob. 7BYMVCh. 20 - Prob. 8BYMVCh. 20 - Prob. 9BYMVCh. 20 - Prob. 10BYMVCh. 20 - Prob. 1WWWTSCh. 20 - Prob. 2WWWTSCh. 20 - Prob. 3WWWTSCh. 20 - Briefly explain why each of the following...Ch. 20 - Briefly explain why each of the following...Ch. 20 - Prob. 6WWWTSCh. 20 - Briefly explain why each of the following...Ch. 20 - Prob. 8WWWTSCh. 20 - Prob. 9WWWTSCh. 20 - Prob. 10WWWTSCh. 20 - Prob. 1TYCCh. 20 - Becky, age 2, was born with a hole in her...Ch. 20 - Prob. 3TYCCh. 20 - Prob. 4TYCCh. 20 - Prob. 5TYC
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- Put in Order (rearrange these structures in the order in which blood passes through them in a circuit from the heart to the foot and back; the first one is done for you) 1. Left Ventricle abdominal aorta anterior tibial artery anterior tibial vein aortic arch ascending aorta common iliac vein common iliac artery external iliac artery external iliac vein femoral artery femoral vein foot inferior vena cava popliteal artery popliteal vein right atrium thoracic aortaarrow_forwardwhich arrhythma refers to rapid, random, inefficient, and irregular contrations of the atria and ventricles(350 beats or more per minute) 1. Flutter 2. Bradycardia 3. Fibrillationarrow_forwardAnswer the following questions regarding the cardiac cycle. During atrial systole, the pressure in the ventricle is pressure in the atrium. than the For the AV valves to close, pressure in the ventricle must be than the pressure in the atria. For the aortic SL vale to close, pressure in the aorta must be than the pressure in the left ventricle.arrow_forward
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