control of respiration Flashcards
what is the major rythym generator
medulla
pre botzinger complex
breathing ryhthm generated by this netowkr of neurons
what does the pre botzinger complex excite
dorsal resp group neurones for inspiration
active expiration nruones
ventral reps group
what terminates inspiration
pmeumotaxic centre
peripheral chemoreceptors
sense tension of o2 and co2 in blood
central chemoreceptors
situated near te surface of the medulla
respond to h+ of the cerebrospinal fluid
what is the cerebrospinal fluid relatively ijmpermeable to
h+ and hco3
what readily crosses blood brain barrier
co2
where are the peripheral chemoreceptors located
carotid body and aortic arch
where are he central chemoreceptors located
near the surface of the medulla
when are central chemoreceptors stimulated
Decrease in pH of the cerebrospinal fluid
what are the only direct stimulus for central chemeoreceptors
hydorgenions
where does the aortic body send their info to
vagus nerve
where does the carotid body send their info to
glossopharyngeal nerve
