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44
expain the dorsal column pathway
has tow nuclie, medial one is gracilis, lateral in cuneatus in medulla, cuneate nuslies recives form upper and graciale form lower l of body but firbes ascend in their faciculius, like cuneate fasciculu,s until thez find their nucleus in the mduula. where thez cross over.
darge diamter inout nerve fibres ofm a alpha and a beta, *ALTS receives fbres form a delta and c )
ascends ippsilaterally ( in ALT ascneds contralaterally)
seconds order neuorns in
seond order neuorn s in the nuclie in medula
convey ino abotu touch and so.
corss ove rin medulla ad ascend in medila lemnicsus to VP thalamus
then projectto somatosensory cortey
darge diamter inout nerve fibres ofm a alpha and a beta, *ALTS receives fbres form a delta and c )
ascends ippsilaterally ( in ALT ascneds contralaterally)
seconds order neuorns in
seond order neuorn s in the nuclie in medula
convey ino abotu touch and so.
corss ove rin medulla ad ascend in medila lemnicsus to VP thalamus
then projectto somatosensory cortey
