chapter 30/31 quiz

Question 1

cardiac output is influenced by

Answer 1

heart rate and stroke volume

Question 2

if the parasympathetic system is activated then

Answer 2

heart rate and force of contraction will decrease
respiratory rate will decrease
blood vessels will dilate
blood pressure will decrease

Question 3

an increase in heart rate tends to increase

Answer 3

cardiac output
arterial blood volume
blood pressure

Question 4

when blood pressure is low____ sends afferent information to the medulla and the _____ system is activated

Answer 4

baroreceptors and sympathetic

Question 5

blood pressure is highest at aorta and lowest where the superior and inferior vena cava meet the right atrium

Answer 5

true

Question 6

cardiac output should be greater than venous return

Answer 6

false; should be equal

Question 7

when CO2 is high _____ sends afferent information to the medulla and the ____ system is activated

Answer 7

chemoreceptors; sympathetic