lect 4 Flashcards
types of extrorecptors
pain, temp, disc touch, vibration
types of proprioceptors
joint receptors, Golgi tendon, mm spindles
components of PNS
Extroceptors and proprioceptors
Pain / temp CNS
spinothalmic
Discri touch / vibration CNS effected
Posterior columns
proprioceptive CNS effected
posterior column, spinocerebellar, anterior horn cells
is conscious ext receptive external or internal world
external
anterolateral system
fibers carrying pain / temp
where anterlateral go from
Sc to Brainstem and thalamus
spinothalamic tract
fibres from Sc to thalamus
is lissauer or sub gelatinous closer to outside
L
where is cell body of 1s order neutron
spinal ganglion
where do 1st order neurones synapse
medulla
discriminate touch via and pressure cross where
medulla
pain / temp cross where
Sc
different post and pre central gyrus
post (sensory), pre (motor)
where is conscious and unconscious of proprioception
con - cortex
un - cerebellum
where does conscious proprioception travel
PCML to thal to cortex
where does un conscious proprioception travel
Spinocereblalr tract to cerebellum
whats synapses at Clarks column
1a, 1b 2 fibers
level of clarks column
c8-l3
post synaptic fibers travel ___ to ___ cerebellum
in dorsal spinocerebellar tract, to ipsilateral cerebellum
proprio info below L3 will travel where
in fas gracilis up to L3, then synapse at Clarke at L3
propose above C8 will travel where
fas cuneatus then synapse in accessory cuneate nucleus
