Final Review: Regulation of Respiration

Question 0

What do the peripheral chemosensitive receptors mostly monitor?

Answer 0

O2 partial pressure in arterial blood

Question 1

What is the primary controller of the rate and depth of breathing?

Answer 1

Pneumotaxic center

Question 2

What do central chemosensitive receptors mostly monitor?

Answer 2

CO2 levels via pH of blood

Question 3

How does the pneumotaxic center control breathing?

Answer 3

It controls the “shut-off” point of the inspiratory ramp signal during normal breathing

Question 4

What is the ventral respiratory group primarily responsible for?

Answer 4

Forced expiration

Question 5

What is Cheyne-Stokes breathing?

Answer 5

Repeated breathing cycle of apnea replaced by increasingly rapid/deep breathing
Often associated with cardiac arrest

Question 6

What are juxtaglomerular receptors sensitive to?

Answer 6

Pulmonary edema (such as in congestive heart failure)

Question 7

What is the Hering-Breuer reflex?

Answer 7

It responds to excessive stretching of the lung