Neural, Hormonal, intrinsic control of heart rate.

Question 1

What is the role of hormonal control during regulation of heart rate during exercise?

Answer 1

Sympathetic release of adrenaline and noradrenaline.

Question 2

What is the role of intrinsic control during regulation of heart rate during exercise?

Answer 2

Increased tempreture and speed of nerve impulse transmission
Increased venous return and force of ventricular contraction and stroke volume

Question 3

Name the three types of receptors.

Answer 3

Chemoreceptors
Proprioreceptors
Baroreceptors

Question 4

What do chemoreceptors do?

Answer 4

Detect a change in co2 levels

Question 5

What do barorecptors do?

Answer 5

Detect a stretch in the vessel walls

Question 6

What do proprioreceptors do?

Answer 6

Detect movemnt in muscle contractions.

Question 7

What do the three receptors do when regulating hear rate during exercise?

Answer 7

Chemoreceptors- detect increase in blood co2
Baroreceptors- Detect increased stretch on vessel walls
Proprioreceptors- Detect increase muscle contractions

Question 8

What does the sympathetic nervous system do during regualtion of heart rate during exercise?

Answer 8

Increase