Effect of Exercise

Question 1

what causes peripheral vasodilatation

Answer 1

exercise

Question 2

vasodilatation because of exercise _____ distal peripheral resistance, enhancing blood flow

Answer 2

lowers

Question 3

what is influenced by sympathetic nervous system for regulation of body temperature

Answer 3

vasoconstruction and vasodilatation

Question 4

what is a key vasodilator of resistance vessels within skeletal muscle

Answer 4

exercise

Question 5

ability of most vasc beds to maintain constant level of blood flow over a wide range of perfusion pressure

Answer 5

autoregulation

Question 6

what is not present in autoregulation

Answer 6

perfusion pressure drops below a critical level

Question 7

BP rise

Answer 7

constriction of resistance vessels

Question 8

BP fall

Answer 8

dilatation of resistance vessels

Question 9

exercise _____ resistance in the working muscle = _____ in the flow reversal component of doppler waveform

Answer 9

decreases

decrease

Question 10

what is normally present in extremity a after vigorous exercise due to vasodilatation

Answer 10

low resistant, monophasic flow

Question 11

peripheral dilatation occurs in response to

Answer 11

prox a obstruction

Question 12

higher resistance signals may result from normal vasoconstriction at arteriolar level or

Answer 12

distal a obstruction