Human Anatomy & Physiology (2nd Edition)
2nd Edition
ISBN: 9780134553511
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 18, Problem 11CYR
Capillaries consist of:
a. three thin tunics.
b. only a thin tunica intima with a well-developed internal elastic lamina.
c. a thin sheet of endothelium with a basal lamina.
d. stratified epithelium.
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Arteries differ from veins in their thicker ____ and ____. a. squamous epithelium . . . outer layer b. endothelium . . . connections to precapillary sphincters c. smooth muscle . . . one-way valves d. outer connective tissue . . . smooth muscle
A blood vessel adapted to withstand great fluctuations in blood pressure would be expected to have:- a. an elastic tunica media. b. a thick tunica interna. c. one-way valves. d. a flexible endothelium. e. a rigid tunica media
Mark the following statements as true or false. If a statement is false, correct it to make a true statement a. Arteries are the exchange vessels of the cardiovascular system. b. The tunica intima is composed of a sheet of endothelium, connective tissue, and the internal elastic lamina. c. The tunica media consists of smooth muscle cells innervated by vasomotor nerves. d. Muscular arteries control blood flow at the tissue level. e. Veins have smaller lumens, more elastic fibers, and more smooth muscle than arteries.
Chapter 18 Solutions
Human Anatomy & Physiology (2nd Edition)
Ch. 18.1 - Define the three types of blood vessels in the...Ch. 18.1 - Prob. 2QCCh. 18.1 - Prob. 3QCCh. 18.1 - Prob. 4QCCh. 18.1 - Prob. 5QCCh. 18.1 - 6. How do veins differ structurally and...Ch. 18.1 - Prob. 7QCCh. 18.1 - What are venous valves, and what are their...Ch. 18.1 - Prob. 9QCCh. 18.2 - Prob. 1QC
Ch. 18.2 - Prob. 2QCCh. 18.2 - Prob. 3QCCh. 18.2 - Prob. 4QCCh. 18.2 - Prob. 5QCCh. 18.2 - Prob. 6QCCh. 18.2 - 7. How does mean arterial pressure differ from...Ch. 18.2 - Prob. 8QCCh. 18.2 - Prob. 9QCCh. 18.3 - Prob. 1QCCh. 18.3 - Prob. 2QCCh. 18.3 - Prob. 3QCCh. 18.3 - Prob. 4QCCh. 18.3 - Prob. 5QCCh. 18.3 - Prob. 6QCCh. 18.3 - Prob. 7QCCh. 18.3 - 8. What is circulatory shock, and why is it...Ch. 18.4 - Describe the structure and size of a typical...Ch. 18.4 - 2. List three ways in which substances may cross...Ch. 18.4 - 3. Describe the properties of the three types of...Ch. 18.4 - 4. What is tissue perfusion?
Ch. 18.4 - Prob. 5QCCh. 18.4 - Prob. 6QCCh. 18.4 - Prob. 7QCCh. 18.4 - Prob. 8QCCh. 18.4 - Prob. 9QCCh. 18.5 - What is hydrostatic pressure? How does hydrostatic...Ch. 18.5 - 2. In which direction does the hydrostatic...Ch. 18.5 - 3. What is colloid osmotic pressure? In which...Ch. 18.5 - Prob. 4QCCh. 18.5 - Where in the capillary does net filtration take...Ch. 18.5 - Prob. 6QCCh. 18.6 - List the three branches of the aortic arch.Ch. 18.6 - Prob. 2QCCh. 18.6 - 3. What is the cerebral arterial circle, and what...Ch. 18.6 - Prob. 4QCCh. 18.6 - Which arteries supply the anterior and posterior...Ch. 18.6 - Prob. 6QCCh. 18.6 - Which artery supplies the upper limb?Ch. 18.6 - Trace the arterial supply of the upper limb from...Ch. 18.6 - 9. Which artery supplies the lower limb?
Ch. 18.6 - Trace the arterial supply of the lower limb from...Ch. 18.6 - Prob. 11QCCh. 18.7 - Where do most veins superior to the diaphragm...Ch. 18.7 - Prob. 2QCCh. 18.7 - Where are the dural sinuses located? What drains...Ch. 18.7 - How does drainage of the posterior body wall...Ch. 18.7 - 5. Which abdominal vessels drain straight into...Ch. 18.7 - Prob. 6QCCh. 18.7 - Prob. 7QCCh. 18.7 - Prob. 8QCCh. 18.7 - Prob. 9QCCh. 18.7 - Prob. 10QCCh. 18 - Prob. 1CYRCh. 18 - Locations where vessels connect via collateral...Ch. 18 - 3. The carotid sinus contains:
a....Ch. 18 - 4. Which of the following factors would increase...Ch. 18 - Which of the following would produce a decrease in...Ch. 18 - Fill in the blanks: The two pressures within the...Ch. 18 - The lowest pressure in the systemic circuit occurs...Ch. 18 - Explain the mechanisms that assist in the return...Ch. 18 - Mark the following statements as true or false. If...Ch. 18 - Prob. 10CYRCh. 18 - Capillaries consist of: a. three thin tunics. b....Ch. 18 - List three ways in which substances can cross the...Ch. 18 - Which of the following structures is the leakiest?...Ch. 18 - Prob. 14CYRCh. 18 - 15. The hydrostatic pressure gradient drives water...Ch. 18 - Prob. 16CYRCh. 18 - Match the following arteries with the correct...Ch. 18 - Which of the following is not a common pulse...Ch. 18 - 19. Which of the following vessels does not drain...Ch. 18 - Match the following veins with the correct...Ch. 18 - 1. Explain why a severed artery spurts blood,...Ch. 18 - 2. Explain why a person who is 7 feet tall is...Ch. 18 - Prob. 3CYUCh. 18 - Prob. 1AYKACh. 18 - 2. Mr. Gupta has been diagnosed with nephrotic...Ch. 18 - Predict the effects of each of the following on...Ch. 18 - Prob. 4AYKBCh. 18 - Ms. Rodgers has been diagnosed with secretion of...
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- When comparing veins and arteries of the same diameter, which of the following statements is not true? Select one: a. Veins have fewer smooth muscle fibers. b. Veins have a larger lumen. c. Veins have more elastic tissue. d. Veins have valves. e. Veins have thinner walls.arrow_forwardPlatelets a. form a plug by sticking to each other. b. release chemicals that stimulate vasoconstriction. c. provide phospholipids needed for the intrinsic pathway. d. serve all of these functions.arrow_forwardName the components of each blood vessel tunic. More than one term may apply to each description, and terms may be used more than once. smooth muscle endothelium elastic fibers collagen fibers 1. Tunica media of arteries 2. Tunica media of veins 3. Tunica interna of arteries 4. Tunica interna of veins 5. Tunica externa of arteries 6. Tunica externa of veinsarrow_forward
- A blood vessel adapted to withstand a highpulse pressure would be expected to havea. an elastic tunica media.b. a thick tunica interna.c. one-way valves.d. a flexible endothelium.e. a rigid tunica mediaarrow_forwardWhich of the following is not a characteristic of a capillary? a. Fenestrated capillaries allow for larger amounts of materials to be exchanged. b. Sinusoid capillaries are the main type of capillary around the brain. c. Capillaries often are arranged in a capillary bed that is supplied by an arteriole. d. The capillary wall consists of an endothelium and a basement membrane only—there is no subendothelial layer.arrow_forwardWhich of the following characteristics is unique to capillaries and not to other blood vessels? A. have low blood pressure B. have high blood pressure C. exchange substances (ions, small molecules and water) between blood and tissues D. carry oxygen and carbon dioxide E. connect to the heart and lungsarrow_forward
- Differentiate the three major blood vessels according to: A. TUNICS B. Blood that flows within each blood vessel (color, viscosity, pH, and specific gravity) C. The method of extraction in each blood vesselarrow_forwardA force that attracts fluid into the capillary from the tissue spaces is Select one: a. venous pressure. b. negative interstitial pressure. c. blood colloid osmotic pressure. d. blood pressure. e. active transport.arrow_forwardMark ALL the statements about capillaries that are TRUE. Select one or more: a. Towards the venule end of the capillary, the blood pressure is higher than the osmotic pressure. b. Fluid will leave the capillaries when the osmotic pressure exceeds the blood pressure. c. Capillaries are only one cell layer thick so the blood moves through them at low velocity. d. Capillaries have a total cross-sectional area that is greater than any other class of vessels. e. The blood pressure will decrease as the blood flows through the capillaries from the arterioles.arrow_forward
- Which of the following best describes an artery? Select one: a. thin-walled, and supplied with valves and nerves b. thin-walled, elastic and supplied with nerves c. thick-walled, elastic and supplied with nerves d. thick-walled, elastic and supplied with valvesarrow_forwardMatch the following types of arteries to their descriptions ? provides the greatest resistance to blood flow ? "has more smooth muscle, but less elastin, and delivers blood to specific organs" ? includes the aorta and brachiocephalic arteries A. Muscular Arteries B. Arterioles C. Elastic Arteriesarrow_forwardDoctors strongly recommend that travelers on long airline flights stretch their legs or stand up and walk down the aisle periodically in order to prevent development of a clot in their lower legs. This is a condition known as Deep Vein Thrombosis (DVT). Explain why this condition is more likely to occur in someone who is sitting still for long periods of time such as on an airplane.arrow_forward
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