chpt 17: spinal cord Flashcards
functions of spc
- reflexes
- site for integration of neuronal summation
- relays sensory nerve impulses
sequence of meninges in spc from outermost to inner most
dura mater
arachnoid mater
pia mater
what is the epidural space between
dura mater and wall of vertebral column
where are anesthetics entered
epidural space
which meningeal layers are avascular in the spc
dura mater
arachnoid mater
what is dura mater made of
DICT
what is the arachnoid mater made of
- collagen fibers and elastic fibers
what is the pia mater made of
collagen fibers and elastic fibers
where is isf and csf located
in the subarachnoid / subdural
what structure is located between the dura mater and arachnoid
subarachnoid / subdural
what is the end of the spc known as
conus medularis
what is the pia mater extension that fuses the arachnoid and dura space
filum terminate
cauda equina is
the roots
where are
- cell bodies of neurons, neuroglia
- unmyelinated axons
- dendrites of interneurons and motor neurons
- reflex arch located
grey mater of spinal cord `
what structures does the white mater of the spc contain
- bundle of myelinates axons
- spinal nerve
- ascending and descending nerve
which spc structure has space for csf
the gray commissure
what structure of the grey matter contains cell bodies of somatic neurons
anterior ventral horn
what does the lateral horn contain
cell bodies of autonomic motor nuclei
what grey matter structure contains cell bodies and axons of interneuron
posterior/ dorsal horn
what connects the white matters R and L side
anterior/ ventral white commissure
