Exam 6: Control of Respiration Flashcards Preview

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Flashcards in Exam 6: Control of Respiration Deck (6)
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1
Q

What is the function of the dorsal respiratory group?

A

Control inspiration

2
Q

What is the function of the ventral respiratory group?

A

Controls inspiration and expiration

3
Q

How do the central chemoreceptors sense changes in O2?

A

CO2 induced respiratory drive, so it doesn’t actually sense changes in O2 directly but rather CO2

4
Q

Where are the peripheral chemoreceptors located?

A
Carotid bodies (located bilaterally in the bifurcation of the common carotid arteries)
Aortic bodies (located along the aortic arch)
5
Q

What is the primary stimulus for ventilation in a healthy patient?

A

PCO2

6
Q

At what PO2 does hypoxic drive become significant?

A

When it drops below 60-70 mmHg

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