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Cardiovascular Review Key

Cardiovascular Review Key - Cardiovascular System Review...

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Unformatted text preview: Cardiovascular System Review KEY Page 1 of 3 Cardiovascular System Review KEY Page 2 of 3 ID: Function: 1. coronary artery supplies nutrients and O2 to the heart muscle (there are multiple coronary arteries on both sides of the heart) 2. pulmonary artery carries low oxygen blood from the right ventricle to the lungs 3. aorta carries oxygenated blood from the heart to the tissues of the body 4. vena cava carries blood from the body to the right atrium 5. pulmonary vein carries oxygenated blood from the lungs to the left atrium 6. right atrium receives blood from the vena cava and moves it to the right ventricle 7. left atrium receives blood from the pulmonary vein and moves it to the left ventricle 8. left ventricle pumps blood from the left atrium to the aorta 9. right ventricle pumps blood from the right atrium to the pulmonary artery List the 4 valves located in the heart and state where each is located. 1. left atrioventricular valve (bicuspid valve or mitral valve) – between the left atrium and the left ventricle 2. right atrioventricular valve – between the right atrium and the right ventricle 3. aortic valve or aortic semilunar valve – between the left ventricle and the aorta 4. pulmonary valve or pulmonary semilunar valve – between the right ventricle and the pulmonary artery Note that the right atrioventricular valve and the two semilunar valves are all tricuspid List the 3 muscle types and state one place each is found in the body. 1. skeletal muscle – attached to bones 2. cardiac muscle – in the heart 3. smooth muscle – GI tract, reproductive tract, ureters, blood vessels Are the 3 muscle types listed above striated, involuntary or voluntary, and multi‐ or mononucleated? skeletal – striated, voluntary, multinucleated (many nuclei per cell or fiber) cardiac – striated, involuntary, multinucleated (1‐3 nuclei per cell) smooth – not striated, involuntary, mononucleated Cardiovascular System Review KEY Page 3 of 3 Arrange the following blood vessels in order from the smallest to the largest in diameter: A. major artery, capillary, arteriole, aorta Ans. – capillary, arteriole, major artery, aorta B. capillary, major vein, venule, vena cava Ans. – capillary, venule, major vein, vena cava Name 2 functions of the circulatory system 1. carry nutrients and O2 to tissues 2. carry waste products from the tissues for disposal 3. return extracellular fluid to the veins (via the lymphatic system) 4. disease control Fill in the blank: arteries carry blood to the heart, and veins carry blood away from the heart. List the 3 layers of tissue in arteries, from the inside to the outside. 1. tunica intima 2. tunica media 3. tunica adventitia (tunica externa) What causes the “lub‐dub” sound of the heat? lub is the atrioventricular valves snapping shut; dub is the semilunar valves snapping shut What are the 3 types of arteries: 1. elastic 2. muscular 3. arterioles What are the different types of capillary? Where are each found? 1. fenestrated ‐ in kidneys and intestines 2. continuous – most tissues List the order of blood circulation from the vena cava and returning to the vena cava, including the tissues, lungs, and heart chambers vena cava, right atrium, right ventricle, pulmonary arteries, lungs, pulmonary veins, left atrium, left ventricle, aorta, arteries, tissues (arterioles, capillaries, venules), veins, vena cava Name the two portal systems and where they go to/from: 1. hepatic portal system, takes blood from the stomach and intestines to the liver 2. hypothalamo‐hypophyseal portal system, takes blood from the hypothalamus to the hypophysis (pituitary) What are the two types of circulation patterns: 1. pulmonary circulation 2. systemic circulation ...
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