Rasmussen College, Minneapolis - ANATOMY AN MA279/BSC2module 3 lab quiz_Verified Answers.

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RASMUSSEN COLLEGE, MINNEAPOLIS - ANATOMY AN MA279/BSC2MODULE 3 LAB QUIZ QUESTION 1 1. What statement is true regarding blood vessels? The tunica interna contains the smooth muscle. Arter... ies and veins both can go through vasoconstriction and vasodilation. The arteries typically carry oxygenated blood from away from the heart. Venules allow for nutrient, product, gas and waste exchange to occur between the body cells and blood vessels. 1 points QUESTION 2 1. Which of the following is true of the cardiac output? CO is the volume of blood pumped from one ventricle in a span of one hour. CO is equal to heart rate multiplied stroke volume. Cardiac output decreases substantially when exercising. Cardiac output stays consistent throughout the day with little variation. 1 points QUESTION 3 1. Which of the following statements is true? Stroke volume is the amount of blood pumped from one ventricle in span of one minute. The left atrium fills before the right atrium during every heartbeat. Heart rate can influence cardiac output. An arteriole is classified as the largest type of artery. 1 points QUESTION 4 1. Which of the following choices is the correct route of blood flow through the systemic circuit after leaving the heart? Arteries, arterioles, capillaries, venules, veins Arterioles, arteries, capillaries, veins, venules Arteries, venules, capillaries, arterioles, veins Arteries, capillaries, veins, venules, arterioles 1 points QUESTION 5 1. Blood flows from the elastic arteries to the ___ then ___. Arterioles; muscular arteries Venules; capillaries Muscular arteries; arterioles Capillaries; arterioles 1 points QUESTION 6 1. If heart rate drops, stroke volume must increase in order for cardiac output to remain constant. True False 1 points QUESTION 7 1. The entire cardiac cycle is dependent upon the AV node generating the electrical impulse to start a heartbeat. True False 1 points QUESTION 8 1. The “dub” sound (or S2) is created by: The AV valves opening The AV valves closing The semilunar valves opening The semilunar valves closing 1 points QUESTION 9 1. What factor does NOT influence stroke volume? The amount of stretch or tension in the ventricle just before it contracts The amount of blood that is filling up the ventricle High blood pressure All the answers are factors that influence stroke volume 1 points QUESTION 10 1. A consistent resting blood pressure of 120/88 would be considered: Normal Prehypertension Stage 1 hypertension Stage 2 hypertension 1 points QUESTION 11 1. The cardiac conduction system causes the right atrium and right ventricle of the heart to contract at the same time, and then the left atrium and left ventricle contract at that same time? True False 1 points QUESTION 12 1. The ventricles are contracting when the heart is in the systolic phase. True False 1 points QUESTION 13 1. The thickest layer of large veins is the tunica externa. True False 1 points QUESTION 14 1. Which of the following statements is true regarding the cardiac cycle? The ventricles contract at the same time The T wave on the EKG graph/measurement represents ventricular contraction The right atrium receives oxygenated blood from the body The left atrioventricular (AV) valve is commonly referred to as pulmonary valve 1 points QUESTION 15 1. In the cardiac cycle, the right atrium fills first, then the left atrium. True False [Show More]

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