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