Flashcards in clasp physiology Deck (12):
stretch receptos in the bronchi
where are central chemoreceptors positioned
surface of medulla
what does a central chemoreceptor respond to
what is more sensitive to changes in H, CSF or blood
CSF- less protein, thus less buffering room.
hypoxic drive is driven by
low oxygen conc- respnse from peripheral chemoreceptors
H drive of respiration
driven by peripheral chemoreceptors.
stimulates hyperventilation and increase elimination of co2 fom the body.
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
action of intercostals on the ribcage
pressures important in respirration
sympathetic influence over the bonchioles
what defuses across alveoli faster, o2 or co2
co2, 20 times faster