clasp physiology Flashcards Preview

Haem i don't know > clasp physiology > Flashcards

Flashcards in clasp physiology Deck (12):
1

stretch receptos in the bronchi

hering-breur reflex

2

where are central chemoreceptors positioned

surface of medulla

3

what does a central chemoreceptor respond to

H conc

4

what is more sensitive to changes in H, CSF or blood

CSF- less protein, thus less buffering room.

5

hypoxic drive is driven by

low oxygen conc- respnse from peripheral chemoreceptors

6

H drive of respiration

driven by peripheral chemoreceptors.

stimulates hyperventilation and increase elimination of co2 fom the body.

7

stimulants of central chemoreceptors

inc pco2 in arterial blood, inc h in brain

h levels in arterial blood stimulate the peripheral but not the central chemoreceptor

8

action of intercostals on the ribcage

elevates

9

pressures important in respirration

atmospheric
intra-alveolar
intra pleural

10

sympathetic influence over the bonchioles

dilation

11

what defuses across alveoli faster, o2 or co2

co2, 20 times faster

12

resting CO

5l