Regulation Of Stroke Volume

Question 0

Preload

Answer 0

Stretch on the heart before it contracts

Question 1

Stroke volume is regulated by three factors

Answer 1

Preload, afterload, contractility

Question 2

Contractility

Answer 2

The strength of contraction

Question 3

Afterload

Answer 3

The pressure the must be exceeded before ventricular ejection can begin

Question 4

The most important factor that affect heart rate are

Answer 4

Peripheral nervous system and hormones released by the adrenal medulla

Question 5

What is the cardiovascular center that regulates heart rate

Answer 5

Medulla

Question 6

Input to the cardiovascular center comes from

Answer 6

Higher brain centres and sensory receptors including proprioceptors, chemoreceptors, baroreceptors

Question 7

Which type of sensory receptors is a stretch receptor

Answer 7

Baroreceptors

Question 8

When heart rate increases the cardiac output

Answer 8

Increases

Question 9

Parasympathic impulses affect heart rate and cardiac output by

Answer 9

Decreasing

Question 10

Sympathic impulses affect heart rate and cardiac output by

Answer 10

Increasing

Question 11

The force of contraction of the ventricles increases the cardiac output

Answer 11

Right