Chapter 7: Exercise Phisology

Question 1

When does exercise hypernea occur

Answer 1

When both breathing rate and breathing depth increase when compared to rest

Question 2

What are propriorecpetors function

Answer 2

They sense movement, send information from the limbs to the CNS and communicate to the respiratory control center in the medulla to increase breathing rate and depth

Question 3

What are the two different mechanisms that help venous blood make its way back to the heart

Answer 3

Skeletal muscle pumps and respiratory muscle pumps

Question 4

What is evaporative cooling

Answer 4

When the body releases sweat in attempts to cool the body since body temperature increases during exercise

Question 5

What is convective cooling

Answer 5

When there is vasodilation of the cutaneous (skin) blood vessels to help cool the body

Question 6

What happens to CO2 clearance and O2 consumption during exercise

Answer 6

CO2 clearance increases and O2 consumption increases
- expressed in liters per minute
- describes the amount of gases that are being dumped or kept in the body
- cannot be measured directly, but can be calculated

Question 7

What is O2 consumption equation

Answer 7

(0.21 - exhaled O2 concentration) x TV x bpm

Question 8

READ THROUGH THIS CHAPTER

Answer 8

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