HUMAN ANATOMY-ACCESS
9th Edition
ISBN: 9780134562773
Author: Martini
Publisher: PEARSON
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Chapter 22, Problem 16RFT
Summary Introduction
Introduction:
Blood capillaries are small blood vessels that have thin walls and form networks known as capillary beds. The endothelial cells form only one layer in the capillaries. They serve as a site for the exchange of many substances such as nutrients, gases, and waste substances. The blood flow through the capillaries is also highly regulated. For instance, the metarteriole regulates the blood flow in the capillary and the thoroughfare channels provide communication between venules and arterioles.
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Which of the following vessels is bilaterally symmetrical (that is, has an identical member of a pair on either side of the body)? (a) internal carotid artery, (b) brachiocephalic trunk, (c) azygos vein, (d) superior mesenteric vein.
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Chapter 22 Solutions
HUMAN ANATOMY-ACCESS
Ch. 22 - Prob. 1RFTCh. 22 - Prob. 2RFTCh. 22 - Prob. 3RFTCh. 22 - Prob. 4RFTCh. 22 - Prob. 5RFTCh. 22 - Prob. 6RFTCh. 22 - Prob. 7RFTCh. 22 - Prob. 8RFTCh. 22 - Prob. 9RFTCh. 22 - Prob. 10RFT
Ch. 22 - Prob. 11RFTCh. 22 - Prob. 12RFTCh. 22 - Prob. 13RFTCh. 22 - Prob. 14RFTCh. 22 - The only blood vessels whose walls permit exchange...Ch. 22 - Prob. 16RFTCh. 22 - Prob. 1RCCh. 22 - Prob. 2RCCh. 22 - Prob. 3RCCh. 22 - Prob. 4RCCh. 22 - Prob. 5RCCh. 22 - Prob. 6RCCh. 22 - Prob. 7RCCh. 22 - Prob. 8RCCh. 22 - Prob. 9RCCh. 22 - Prob. 10RCCh. 22 - Prob. 1CTCh. 22 - Prob. 2CTCh. 22 - Prob. 3CT
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- Blood flow through the capillaries is steady despite the rhythmic pumping action of the heart because of the (a) elasticity of the large arteries only, (b) elasticity of all the arteries, (c) ligamentum arteriosum, (d) venous valves.arrow_forwardThe blood vessels that collect blood from all tissues and organs and return it to the heart are the, (a) veins. (b) arteries. (c) capillaries. (d) arterioles.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
- Identify this blood vessel. (A) capillary (B) arteriole (C) elastic artery (D) muscular arteryarrow_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_forwardRelaxation of precapillary sphincters: a) increases blood flow through ateriovenous shunt b) increases hydrostatic pressure at the arteriole end of the capillary c) reduces the quanityt of blood serving that body region d) is directly caused by the parasympathetic nervous systemarrow_forward
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