test 1: lab 3 Flashcards
three regions of white matter in the spinal cord
dorsal funiculus
ventral funiculus
lateral funiculus
___ septum divides the white matter in the spinal cord
dorsal median septum (in the dorsal funiculus)
___ fissure divides the white matter on the ventral side
ventral median fissure
___ is where the rootlets enter the spinal cord
dorsolateral sulcus
divisions of the spinal grey matter
dorsal horn
intermediate zone
ventral horn
___ contains sensory inputs (somatic and visceral afferents)
dorsal root
___ contain somas of sensory afferents entering the spinal cord
DRG
___ motor outputs (somatic and visceral efferents)
ventral root
___ - mixed sensory and motor
spinal nerve
spinal cord ends below L1 vertebrae as the ___
conus medullaris
lumbar and sacral nerves after L1 form the ___
cauda equina
where?
cervical
thoracic
lumbar
ventral horns have info about ___
motor to muscles
where?
C8 ( large ventral horn sorta oval)