l4 Flashcards
spinal cord length
42 45 cm adult
spinal cord diameter
1 2 cm
8
cervical
12
thoracic
5
lumbar
5 sacral
1
coccygeal nerve
Lateral horn contain
AMN autonomic motor neuron
vertebral canal function
support
protection
spinal nerves pass through?
intervertebral foramina
lower motor function from?
ventral horn
lower motor function can be stimulated by
reflexes
UMN
lateral horn has? function?
AMN
involuntary stuff
send axon to prevertebral ganglia
lumbar + sacral =?
cauda equina (horse tail)
spinal cord extend till?
L1 or L2
cervical, lumbar enlarges =>?
increased nervous tissues for the innervation of the limbs (arms, hands, legs, feets)
white matter contain?
column dorsal, lateral, ventral
+ collection of tracts (collection of axon carry same type of information)
spinothalamic tract asc or desc
ascending tract
spinothalamic carry?
pain, temp, crude touch sensory
spinothalamic damage? size increase when
increase as it moves up bc more information added to those higher
damage = loss sense below level of damage
dorsal column carry?
proprioceptor (body position) fine touch
dorsal colum carry lower body sensation
medially
dorsal carry upper sense (t6 up)
laterally