Transcribed Image Text from this Question
Question 49 (1 point) Which best explains how the vascular system maintains blood pressure? arterioles dilate or constrict to provide the correct amount of resistance to blood flow veins constrict to maintain blood pressure when blood pressure increases arteries carry blood throughout the body to maintain stable blood pressure veins and capillaries together maintain blood pressure Question 50 (1 point) Which blood vessel(s) carries oxygenated blood to the left atrium? pulmonary arteries inferior vena cava pulmonary veins superior vena cava Question 47 (1 point) What mechanisms assist venous return? one-way valves, skeletal muscle contractions, pressure changes during breathing respiratory pressure changes, one-way valves, lower peripheral resistance one-way valves, large vessel diameter, pressure in adjacent lymphatic vessels muscle contractions, adjacent lymphatic vessels, smaller vessel diameter Question 48 (1 point) What is the function of the pulmonary circulation? delivers oxygen and nutrients to the pulmonary tissue the respiratory muscle pump helps return venous blood to the heart transports deoxygenated blood to the alveoli for gas exchange brings deoxygenated blood to the heart for circulation to the lungs
(Visited 3 times, 1 visits today)