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control of breathing - Coggle Diagram
control of breathing
by
Voluntary control
located in
the cerebral cortex
Automatic control
driven by
pacemaker cells in the medulla
medullary respiratory center
the ventral respiratory group (VRG)
rhythm generator
expiratory neurons (active expiration)
the dorsal respiratory group (DRG)
contains inspiratory neurons
receive input from
– the peripheral (arterial) chemoreceptors—the carotid and aortic bodies
increase H ion
due to non- Co2 source , ventilation will increase
by stimulate
1 more item...
control H conc. is important BC PH will effect all enzymes and cell
it happen in case of metabolic acidosis
1 more item...
increase Pco2
more than 40 , will increase ventilation
by stimulate
2 more items...
Very high levels of carbon dioxide actually inhibit ventilation, lethal, anesthesia-like effect.
decrease Po2
if it less than 60 mmgH, ventilation will increase
by stimulate
1 more item...
– the central chemoreceptors
change in brain extracellular fluid
caused by
Hypercapnia
respiratory acidosis
in Pons
Pneumotaxis center
Deep & prolong inspiration
Smooth transition between inspiration and expiration
Apneustic center
stop breathing