Question

Chapter 22: The Cardiovascular System: Vessels and Circulation Name: Date: Section: POST-LABORATORY WORKSHEET The 1 corresponds to the Learning Objectivels) listed in the chapter opener outline, Do You Know the Basics? Exercise 22.1: Blood Vessel Wall Structure 1. The tunic in blood vessels that is composed of simple squamous epithelium for endothelium) and a subendothelial layer composed of areolar com tissue is known as the tunica _linterna/externa). O 2 Exercise 22.2: Elastic Artery -The Aorta 2. Which of the following statements correctly describes an elastic artery? (Check all that apply.) 3 a. contains an internal elastic lamina b. contains multiple layers of smooth muscle c. tunica media contains numerous elastic fibers d. typical diameters are 1-2.5 cm in diameter e. very thin with no smooth muscle cells 3. Elastic fibers allow for turbulent flow in elastic arteries. (True/False) 4. The vasa vasorum refers to the vessels of the vessels," and they function to deliver blood to larger vessels. (True/False) 5 (True/Falsel 6 Exercise 22.3: Muscular Artery 5. A characteristic feature of a muscular artery is the presence of an internal and external elastic lamina. 6. Elastic arteries are typically located closest to the heart where pressures are (highest/ lowest). Exercise 22.4: Arteriole 7. Constriction of arterioles (decreases/increases) blood flow into capillary beds. 8 Exercise 22.5: Vein 8. Veins are considered (high/low) pressure vessels. 9 9. A venous valve is formed by an infolding of the tunica intima (True/False) 10 Exercise 22.6: Observing Electron Micrographs of Capillaries 10. Rank the following types of capillaries from most to least permeable. 11 a. continuous b. fenestrated c. sinusoidal Exercise 22.7: Pulmonary Circuit 11. Trace the flow of blood from the right ventricle of the heart through the pulmonary circulation and back to the left atrium of the heart. Be sure to identity heart valves through which the blood flows. 12 right ventricle left atrium 622 Chapter Twenty-Two The Cardiovascular System: Vessels and Circulation Read LAB

questions number 1,2,3,4,5,6,7,8,9,10,11

Answer 1

1. Tunica interna...

2. c and d..

3. True...

4. True...

5. True...

6. Pressure is highest...

7. Decreases blood flow to capillaries..

8. Low pressure vessels...

9. True...

10. a.3

b.2

c.1

11. From right ventricle through pulmonary valve it goes into pulmonary arteries then into lungs and here oxygenation of blood occurs and then through capillary beds in lungs enters into pulmonary vein and them into left atrium...

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