Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Chapter 19, Problem 7RQ
Summary Introduction
To determine:
The correct statement about the crista terminalis.
Introduction:
The heart comprises of two auricles and the two ventricles. The heart has cardiac muscles and they circulate blood throughout the body. The right side of the heart receives deoxygenated blood from the body parts while the left side of the heart transfers oxygenated blood throughout the body. The semilunar and the atrioventricular valves prevent the backflow of the blood within the four chambers of the heart.
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Where is the sinoatrial node located?
(A) Between the left atrium and the left ventricle(B) Between the right atrium and the right ventricle(C) In the interventricular septum(D) In the upper wall of the left ventricle(E) In the upper wall of the right atrium
Deoxygenated blood found in this vessel at the site marked (white arrow):
(A) drains directly into the medial basilic vein
(B) drains directly into the medial cephalic vein
(C) drains directly into the brachial vein
(D) drains directly into the median cephalic vein
(E) drains directly into the axillary vein
The two arteries formed by the division of the brachiocephalic trunk are the(a) aorta and internal carotid. (b) axillary and brachial. (c) external and internal carotid. (d) common carotid and subclavian.
Chapter 19 Solutions
Human Anatomy
Ch. 19 - Prob. 1CYUCh. 19 - Prob. 2CYUCh. 19 - What is another name for the epicardium?Ch. 19 - Identify the heart chamber or chambers that...Ch. 19 - Prob. 5CYUCh. 19 - Prob. 6CYUCh. 19 - During ventricular systole, are the AV valves open...Ch. 19 - Differentiate a stenotic valve from an incompetent...Ch. 19 - What is the significance of the gap junctions in...Ch. 19 - What is the pacemaker of the heart, and where is...
Ch. 19 - Prob. 11CYUCh. 19 - Prob. 12CYUCh. 19 - Prob. 13CYUCh. 19 - How would incomplete formation of the...Ch. 19 - Which chamber of the heart is formed from the...Ch. 19 - What is the single most important factor for...Ch. 19 - The most external part of the pericardium is the...Ch. 19 - Prob. 2RQCh. 19 - How many cusps does the right atrioventricular...Ch. 19 - Prob. 4RQCh. 19 - Prob. 5RQCh. 19 - Prob. 6RQCh. 19 - Prob. 7RQCh. 19 - Prob. 8RQCh. 19 - Prob. 9RQCh. 19 - Which layer of the heart wall is the thickest? (a)...Ch. 19 - The inferior left corner of the heart is located...Ch. 19 - Ben was annoyed when his lab partner insisted that...Ch. 19 - Describe the location of the heart within the...Ch. 19 - Trace a drop of blood through all the heart...Ch. 19 - Prob. 15RQCh. 19 - Sketch the heart and draw all the coronary vessels...Ch. 19 - Prob. 17RQCh. 19 - Prob. 18RQCh. 19 - Make a drawing of the adult heart and the...Ch. 19 - How do the right and left ventricles differ...Ch. 19 - Which is more resistant to fatigue, cardiac muscle...Ch. 19 - Describe the structure and function of an...Ch. 19 - Compare and contrast the structure of cardiac...Ch. 19 - Classify the three congenital heart...Ch. 19 - Prob. 2CRCAQCh. 19 - Prob. 3CRCAQCh. 19 - After a man was stabbed in the chest, his face...Ch. 19 - A heroin addict felt tired, weak, and feverish....Ch. 19 - Another patient had an abnormal heart sound that...Ch. 19 - Prob. 7CRCAQCh. 19 - During a lethal heart attack, a blood. clot lodges...Ch. 19 - Prob. 9CRCAQ
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- The vein that collects most of the venous blood from below the diaphragm is the: (a) superior vena cava. (b) great saphenous vein. (c) inferior vena cava. (d) azygos vein.arrow_forwardThe posterior tibial vein receives deoxygenated blood from all of the following regions EXCEPT the (A) bottom of the foot (B) muscles of the lateral compartment of the leg (C) muscles of the posterior compartment of the leg (D) top of the footarrow_forwardThe middle cardiac vein runs with which artery? (a) marginal artery, (b) aorta, (c) coronary sinus, (d) anterior interventricular artery, (e) posterior interventricular artery.arrow_forward
- The aortic valve closes (a) at the same time the mitral valve closes, (b) just after the atria contract, (c) just before the ventricles contract, (d) just after the ventricles contract.arrow_forwardIdentify which artery is missing from the following sequence, which traces the flow of arterial blood to the right hand: Blood leaves the heart and passes through the aorta, the right subclavian artery, the axillary and brachial arteries, and through either the radial or ulnar artery to a palmar arch. (a) left coronary, (b) brachiocephalic, (c) cephalic, (d) right common carotid.arrow_forwardWhich of the following statements about the azygos vein is true? (a) It is paired. (b) It receives all of the left posterior intercostal veins. (c) It drains into the right brachiocephalic vein. (d) It joins the superior vena ceva.arrow_forward
- A pressure point is a place where one presses on an artery through the body surface to stop bleeding more distally. Which of the following sites is not a pressure point for any major artery? (a) the medial bicipital furrow on arm, (b) the sciatic artery in middle of gluteus maximus, (c) the midinguinal point in the femoral triangle.arrow_forwardWhich of the following statements are true? (a) The left ventricle wall is thicker than the right ventricle wall. (b) The left ventricle pumps blood at a higher pressure than the right ventricle. (c) The left ventricle pumps more blood with each beat than the right ventricle. Explain.arrow_forwardA blockage in the right internal carotid does not necessarily cause a loss of blood supply to the brain. (a) Identify the area of the brain supplied by the right internal carotid, and name the vessels that would supply blood to this area if there is a blockage in the right internal carotid artery. (b) Is a thrombus in the external carotid life-threatening? Why or why not?arrow_forward
- Which of the following best describes the location where the carotid pulse can be found? (A) In front of the ears and just above eye level(B) In the antecubital space(C) In the middle of the groin(D) On the anterior side of the neck(E) On the medial aspect of the wristarrow_forwardThe sac that provides a fluid-filled cushion for the heart is composed of (z) an inner visceral pleur and (y) an outer parietal pleura. (w) an outer parietal pericardium and (x) an inner visceral pericardium. (w) an endothelium and (x) a mesothelium. the diaphragm and (w) the pleuracardium. (x) a parietal pericardium and (z) parietal peritoneum.arrow_forwardTell which two veins are missing from the following sequence: Tracing the drainage of superficial venous blood from the leg, blood enters the great saphenous vein, femoral vein, inferior vena cava, and right atrium. (a) coronary sinus and superior vena cava, (b) posterior tibial and popliteal, (c) fibular (peroneal) and popliteal, (d) external and common iliacs.arrow_forward
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