Intrinsic Control

Question 1

1. When excersise starts…

Answer 1

…body temperature increases, which increases the flow of blood around the body.

Question 2

2. Blood becomes less viscous…

Answer 2

…which helps increase HR by increasing the speed of nerve impulse transmission.

Question 3

3. Venous return is also increased…

Answer 3

…as changes will increase the stretch in ventricular walls, increasing the force of contraction and therefore SV

Question 4

4. Increased SV leads to…

Answer 4

…increased HR.