s4

Question 1

what is the majority of co2 transported in blood A

Answer 1

Bicarbonate, then carbamino compounds, then dissolved co2

Question 2

partial pressures of co2, o2 and pH hyperventilaton

Answer 2

high po2, low pco2, pH increased

Question 3

where are peripheral chemoreceptors located

Answer 3

carotid and aortic bodies

Question 4

do peripheral chemoreceptors become desensitised to hypoxa

Answer 4

NO

Question 5

are central chemoreceptors sensitive to prolonged hypercapnia

Answer 5

yes they become reset at a higher level due to choroid plexus secreting more HCO3 into the CSF, restoring the ratio and removing the stimulus for the central chemoreceptors