Acute responses to exercise

Question 1

respiratory rate

Answer 1

increased - number of breaths per min

Question 2

ventilation

Answer 2

increased- volume of air breathed in per min

Question 3

tidal volume

Answer 3

increased- volume of air breathed in per breath

Question 4

pulmonary diffusion

Answer 4

increased- the transfer of oxygen from lungs (alveoli) into the blood (capillaries)

Question 5

heart rate

Answer 5

increased- number of heart beats per min

Question 6

stroke volume

Answer 6

increased- volume of blood pumped per beat

Question 7

cardiac output

Answer 7

increased- volume of blood pumped by heart per min

Question 8

systolic blood pressure

Answer 8

increased- pressure exerted by the blood against the arterial walls when the heart contracts

Question 9

a-V02

Answer 9

increased - the difference of concentration of oxygen in the arterial blood and venous blood.

Question 10

motor unit recruitment

Answer 10

increased- number and frequency of motor units recruited for muscle contraction

Question 11

muscle temperature

Answer 11

increased- degree or heat present in muscles

Question 12

oxygen uptake (v02)

Answer 12

increased- volume of oxygen that can be taken up and used by the body

Question 13

metabolic by-products

Answer 13

increased- substances leftover from metabolic processes

Question 14

energy substrate stores

Answer 14

decreased- fuel sources required for ATP resynthesis