jaysica2014's version from 2017-02-15 23:21

Section 1

Question Answer
cerebellum is also called the little brain
location of cerebellumpost to brain stem; inferior to cerebrum
function of cerebellumproprioception, coordination, muscle tone, balnace, timing of movements
grey matter is locatedoutside with some nuclei inside
white matter is locatedinside
loss of coordination between muscle; stumbleataxia
loss of coordination in perfomring motor acts; jerkyasynergia
inability to judge distance and stop movement; over/under reachdysmetria
inability to perfrom rapid alternating movementsadiadochokinesia
durinng movementintention tremor
decrease muscle tonehypotonia
slurred, explosive speechdysphonia
where is parkinson affectedcerebellum
medulloblastomamost common tumor in children; 4th ventricle
involuntary back and forth movment of eyes in jerky fashion when eye moves lateral or mediallynystagmus
open chambers within bbrainventricle
filled with ?cerbral spinal fluid
color of CS fluidcolorlesss/clear
supplies basal nucleianterior cerebral artery
supplies lateral surface of frontal, temporal, and parietal and part of infeior area of frontal/temp lobemiddle cerebral artery
supplies the cerebellum, pons and midbrainbasilar artery
right and left ventricle artery join to createbasilar artery
cont down center of Spinal cordcentral canal
functions of ventricular systemCSF, protect, buoyancy, shock absorption, excretion and transport
Ventrical systemholds CSF; protection; doesnt mix with blood
what comes out of the intervetrebral foreamenroots

Section 2

Question Answer
CSF is kept seperate from blood supply by whatblood brain barrier
buildup of fluid that causes pressure on brain sturcture and enlargement of ventriclehydrocephalus
3 levels ofprotection for brainbony (skull), membranous, fluid (deepest CSF)
meninges (out to innnermost)dura, arachnoid, pia
thickest, contains blood vessel (meninges)dura
delicate connective tissue with no blood vessel (meninges)arachnoid
directly covers brain; carries blood vessel to brainpia matter
layers (5)Skins, skull, dura, arachnoid pia, brain
subarachnoid space holdscsf
subdural space holdsno csf
molecules cross to/from cns and vascular system and others cantblood brain barrier
basilar arterys branch intoposterior cerebral arteries
supplies the medial/infeior of occipital/temp/thalamus/hypoposterior cerebral artery
what is just transporting to complete the circleanterior and posterior cerebral arteries
MCA is divided into3 pieces
oxygen to leg/trunkaca
where does stroke occurmiddle cerebral artery
2 major blood artereies give rise to circle of willisinternal coratid and vertebra (comes from spine)
aorta arch=common corotid

Section 3

Question Answer
motor and sensoryproblems corss over in the brain stem
nerve root total pairs31
C, T, L, S8,12,5,5
cone shaped end found at L2conus medullaris
collection of nerve rootscauda equina
threadlike runn from conus medullarisfilium terminal
main pathway for info connecting brain and PNSnerve roots
vertebrae: CTLS7,12,5,5
protection of nerve rootsbony, membraneous, fluid
grey matter spinemiddle
transmit sensory impulsedorsal root
holds snesory cell boidesdorsal root ganglio
transmits motor impulsesventral root
contains motor cell bodiesventral horn
brain to spinal out to these; reaction punchventral horn
contain ascennding (S) and descending (M)white matter
each tract carries type of iinfowhite matter tract
all spinal nerve has what kind of infosensory and motor
tract is specific to motor and sensory
veterbral foreamenthole in between vertebrae
axon tract locationoutside
damage to cerebelllumaffects same side

Section 4

Question Answer
order of sensorybody, nerve, dorsal root, drg, spinal cord tract, brainstem, sensory cortex
motor ordermotor cortex, brain stem, spinal cord, ventral horn, ventral root, nerve, muscle
Lower motor neuron post synaptic2nd motor neuron
UMN presynaptic1st mn
1st motor neuronCNS
2nd motor neuronPNS
severance of spinal corrdtransection
causes tumor vetebral degnerationcompression
mva, knife/gun shot woundtransection
ALS bilateral degenerationdegenerative disorder
upper motor neuron has low or high tonehigh
lower motor neuron has high or low tonelow tone
meninges, spinal cord, and spinal nerves protrude causing M&S deficist below cyst: BADmeningomyelocele
memebies protrude through but only causes cystmeningoclee