Other Reflexes Flashcards
بسم الله الرحمن الرحيم وبه نستعين
Mention other reflexes than SR
Flexor withdrawal reflex
Corssed Reflex
Superficial Reflexes
Flexor withdrawal reflex
Give definition
PRECA RSD protective Reflex Flexion and Withdrawal a limb from painful stimulus
Stimulus of flexor withdrawal reflex?
Receptors?
Painful stimutls
Ploymodal pain receptors قرصة - لسعة
Afferetns and centers of Flexor withdrawal reflex ?
A delta + C fibers
__________
Spinal cord polysynaptic 4 synapses
Efferetn and effector of flexor withdrawal reflex
and respone?
Efferent alpha motor neuron
effector Extrafusal muscle fiber
Flexion and withdrawal of a limb from painful stimulus
properties of Flexor withdrawal reflex…
ARDI PSRA
After discharge
Reciprocal innervation
Divergence
irridiation
Painful stimuli
Polysynaptic
SYNAPTIC FATIGUE
Reverbrating circutis
AFFERENT A DELTA + CFIBERS
Receprioal innervation on flexoe withdrawal reflex ?
Contraction of flexor and inhibtion of extensor at the same time
Divergence and FLEXOR Withdrawal reflex
The stronger the stmiulus the more afferents from receptor activiating more interneurons in the SAME spinal segments so activating more alpha motor neuron the stronger response becones
Irrdiatioin is different from divergence explain
The stronger the stimulus the more receptors giving afferents to interneurons in DIFFERENT spinals SegmentS and the alpha motor their alpha motor neurons activating more than one muscle in stronger response
After discharge appear in flexor withdrawal reflex
as flexed muscles remains flexed for some time after removing the stimulus due to it reverbrating ciruits\
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Crossed extensor reflex mean ?
Reflex extensor of a limb due to the other limb being exposed to strong painful noxious stimuli
Stimulus of crossed extensor reflex?
aim?
Strong painful stimuli to other limb
to support body
Respone of Strong painful stimuli to alimb ?aim?
Ipislateral Flexion
Contralateral extension
Propertirs of crossed Extensor Reflex?
Long latent Period
Long After Discharge
Reciprocal innervation
Recprocal innervation in crossed extensor reflex ?
Contraction of extensors
inhibition of Flexors