2. Year 10 - Acute Responses (during exercise)

Question 1

Heart Rate

Answer 1

Increased - to pump more oxygenated blood to the working muscles

Question 2

Does heart rate increase linearly to exercise?

Answer 2

Yes

Question 3

Blood Flow Distribution

Answer 3

At rest 20% of blood flow goes to muscles, during exercise 85% of blood flows to muscles

Question 4

At rest where does most of the blood go?

Answer 4

Kidney (20%), Liver (25%)

Question 5

How much blood do the kidney/liver get during exercise?

Answer 5

1-2%

Question 6

Stroke Volume

Answer 6

Increases - It reaches its maximal level during sub-maximal intensity.

Question 7

Is stoke volume linear to exercise?

Answer 7

No, as it reaches it peak at about 50% intensity.

Question 8

A-V02 difference

Answer 8

The difference between 02 Concentration in the veins compared to 02 concentration in the arteries.