Control Centers In The Midbrain, Pons Flashcards
CREATES the basic respiratory RHYTHM
MEDULLA
MODIFIES the basic respiratory rhythm
PONS
Contains the APNEUSTIC and PNEUMOTAXIC centers
PONS
MAIN respiratory center
DORSAL Respiratory group
~ Generates basic rhythm for breathing
~ for NORMAL/RESTING INSpiration
~INput: CN IX (PERIPHERAL chemoreceptors)
CN X (PERIPHERAL chemoreceptors and LUNG MECHANOreceptors)
~ OUTput: PHRENIC nerve —> Diaphragm
DORSAL respiratory group (DRG)
~ Supplements effect of DRG during EXERCISE
~ for FORCED INSpiration and EXPiration (OVERDRIVE mechanism)
VENTRAL respiratory group (VRG)
Pacemaker neurons responsible for respiratory rhythmogenesis
VRG Pre-Botzinger Complex
Location: UPPER Pons
SHORTENS time for INSpiration —> INC RR
PNEUMOTAXIC Center
Location: LOWER pons
PROLONGS time for INSpiration —> DEC RR
Causes DEEP and PROLONGED inspiratory GASP (APNEUSIS)
APNEUSTIC center