Brain stem -? FINAL FICKING A&P
how many cranial nerves are located in the brain stem
9
where is the central canal
located in the core of the spinal cord
structurally how is the brain stem and the spinal cord similar, name the 3 parts to the brain stem
both are composed of outter white matter and inner grey matter, medulla oblongata, the pons, and spinal cord
How do the dura mater and pia mater surrounding the spinal cord differ from the dura mater and the pia mater surrounding the brain?
brain dura matter is double layers and spinal cord single and pia matter in the brain is directly attached but spinal cord used denticulate ligaments
what is the "Arbor Vitae"
branching pattern of white matter on the cerebellum
The tandem walk test involves walking in a straight line with one foot immediately in front of the other (heel to toe) - the inability to maintain balance during a tandem walk due to alcohol intoxication is indicative of impairment of which brain region?
cerebellum
function of substina pigment
contains dopamine releasing hormones
function of red nuclei pigment
controls limb flexion
what is the filum terminale
fibrous extension from the conus medullar is and anchors the cord vertically to the coccyx
name the cellular lobe that cannot be viewed from the surface of the cerebellum
flocculonodular lobe
what is the vermis
holds together the 2 cerebellar hemispheres
where does decussation of the prymids occur, what is the consequence of the decussation
on the medulla oblongota on its ventrial surface, contraladral control of the skeletal muslce
what is the spinal dural sheath
outter most single layer dura matter of the spine
describe the arrangement of white and grey matter in the spinal cord
outter white and inner grey thats opposite of cerebellum and cerebrum
Transection of the spinal cord below the cervical enlargement but above the lumbar enlargement
paraplegia
How can you tell the difference between paralysis caused by damage at the level of the precentral gyrus and damage at the spinal cord
pre central gyrus is one sided compared to spinal cord where you can have 2 limbs or 4 limbs
consequence of a Transection of the spinal cord above the cervical enlargement?
quadriplegia
what are the 2 pigmented nuclei in the brain
red and substantial pigment
what is sub anachroid space
space between anachroid and and pia matter that contains CSF
what is the epidural space
space between the vertebrae and the spinal dural stealth, contains fat and blood vessels
which space contain CSF
subanachroid
what is the conus medullaris
the end cone structure on the spinal cord
what is the denticulate ligaments
anchors the spinal cord laterally and formed by pia matter
what medical condition results from the degeneration od nuclei in the ventral horns in the spinal cord?
anyotorophic lateral sclerosis
explain why trama to the brain stem can be fatal
because the nerves that are on the brain stem have heart, and respiratory nveres and damages to those can stop the function of heart and lungs
where are the corpus quadrigemina and what is its function
between cerebellum and cerebrum and acts as a visual and auditory reflex center
