Cell bodies of interneurons can be found in which of the following locations?
Ventral horns of the spinal cord Anterior horns of the spinal cord White matter of the spinal cord Dorsal root ganglia Dorsal horns of the spinal cord
Dorsal horns of the spinal cord
__________ line the central canal of the spinal cord and help to circulate CSF.
The cell bodies of sensory neurons whose axons travel in spinal nerves are located within the _________.
dorsal root ganglia
________ roots the spinal cord to the coccyx
There are __________ pairs of spinal nerves.
A spinal nerve is formed from the union of a dorsal _______ and a ventral _______. What word fills in both blanks?
anterior root has only ______
posterior root has only ____
distal tapered end of the spinal cord
the spinal cord runs inferiorly from ______ to ________-
the foramen magnum; L1 or L2
collection of spinal nerve roots extend inferior to spinal cord
extension of pia mater from the conus medullaris anchoring to the posterior surface of the coccyx
what are the two major enlargements of the spinal cord
cervical enlargement and lumbrosacral enlargement
what group of nerves is found near the cervical enlargement of the spine?
which vertebrae do the cervical and lumbrosacral enlargements cover?
c5-T1 and L1-S3
what protects the spinal cord?
vertebrae, meninges, ligaments, muscles CSF
what is the function of a denticulate ligament and what are they made of?
help anchor the spinal cord out laterally up and down the spinal column. made of pia mater
what are the meningeal spaces of the spinal cord and brain and are they potential or actual
brain spinal cord
epidural potential actual
subdural potential potential
subarachnoid actual actual
which epidural space is continuous between brain and spinal cord?
where is an epidural administered? why?
in the epidural space between L3 and L4 o4 L4 and L5. The epidural space in the spinal cord is not continuous with the space in the brain. you don't want anesthetic in the brain
where is a spinal tap administered AKA LUMBAR PUNCTURE?
into the subarachnoid space - used to remove CSF to dx meningitis
through which fissure does the anterior spinal artery travel?
the anterior median fissure
what is more deep, the posterior median sulcus or anterior median fissure?
anterior median fissure is deep to posterior median sulcus
where are cell bodies of motor neurons found?
in the ventral horn
where are cell bodies of sensory neurons found?
in the dorsal root ganglia
identify yellow structures
dorsal root ganglion