Test_2_Review

Test_2_Review - Test 2 Review Chapters 19-21 Chapter 19...

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Unformatted text preview: Test 2 Review Chapters 19-21 Chapter 19 FILL IN THE BLANK ___________ carry blood away from the heart. ___________ carry blood toward the heart. Arteries carry blood away from the heart. Veins carry blood toward the heart. Multiple Choice Which of the following is not one of the three tunics of arteries and veins? Tunica Interna Tunica Media Tunica Externa Tunica Extrema Tunica Extrema FILL IN THE BLANK ___________ have the most control, which means that they have the most ___________. Arterioles have the most control, which means that they have the most resistance . On the Following Slide, Match the Capillary to its Correct Description. Capillaries Descriptions Continuous Capillaries a. Highly modified, leaky, fenestrated capillaries with large lumens found in the liver, bone marrow, lymphoid tissue, and in some endocrine organs; Allow large molecules to pass between the blood and surrounding tissues Fenestrated Capillaries b. Found wherever active capillary absorption or filtrate formation occurs, for example, in the small intestines, endocrine glands, and kidneys; Characterized by an endothelium riddled with pores and greater permeability to solutes and fluids than other capillaries Sinusoids c. Abundant in the skin and muscles; have endothelial cells that provide an uninterrupted lining; Adjacent cells that are held together with tight junctions; Intercellular clefts of unjoined membranes that allow the passage of fluids Capillaries and Descriptions Continuous Capillaries: C Fenestrated Capillaries: B Sinusoids: A FILL IN THE BLANK Veins are a ___________-pressure system, but have ___________ capacity due to the ___________ pressure. Veins are ___________, have ___________, and are located by ___________, which allow them to get blood back to the heart. Veins are a low-pressure system, but have high capacity due to the low pressure. Veins are large , have valves , and are located by muscles , which allow them to get blood back to the heart. Multiple Choice What is blood pressure? Measured in reference to systemic arterial blood pressure in large arteries near the heart. Expressed in millimeters of mercury (mm Hg) Force per unit area exerted on the wall of a blood vessel by its contained blood Measured with a sphygmomanometer All of the above All of the Above Multiple Choice Which of the following is not on of the three important sources of resistance?...
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This note was uploaded on 02/04/2011 for the course BIOL 2222 taught by Professor Jones during the Summer '11 term at Kennesaw.

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Test_2_Review - Test 2 Review Chapters 19-21 Chapter 19...

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