hms 3 Flashcards
cushion fibrous sac nourish
meningeal sac
tapered cone end of spinal cord
conus medularis
conus medularis to end of spinal cavity
anchors the spinal cord
extension of meninges
filum terminale
nerves from C and T
go to arms and throrax
nerves from lumbar sacral and coccygeal levels
go to legs, pelvis and abdomen
spinal nerves at end of spinal cord
cauda equina
dorsal sulcus
small furrow
ventral fissure
a deep sulcus
internal features of spinal cord
dorsal/ventral horn/columns/nerve roots
dorsal and ventral nerve direction
dorsal=sensory=afferent
ventral =motor=efferent
where are the somatic motor neurons
ventral horns of spinal cord
where are the autonomic motor neurons
lateral/ventrolateral horns of spinal cord
flow of information
dorsal ramus, ventral ramus
ventral ramus communicates with sympathetic chain via 2 sympathetic rami
fibres in peripheral nerves
axons
fascicles
nerves
coating of nerves
endoneurium
perineurium
epineurium