Chapter 11-Nervous System 2 Flashcards
tentorium cerebelli
separates occipital lobe of cerebrum from cerebellum
falx cerebri
separates right and left cerebral hemispheres; extends toward longitudinal fissures
falx cerebelli
separates right and left cerebellar hemispheres
function, location and formation of cerebrospinal fluid
function: protects brain from damage and helps maintain stable ionic concentration
formation: choroid plexuses secrete CSF
location: choroid plexuses between pia mater and subarachnoid, CSF goes through ventricle accumulates in subarachnoid
hemispheres
falx cerebri: separates
left: usually dominant-analytical
right: non-dominant-patterns
corpus callosum
connects both hemispheres
convolutions
ridge
sulci
shallow to somewhat deep groove
gyri
top of canyon
fissures
separates hemispheres
lobes
frontal: front
parietal: top middle
occipital: back
temporal: by ears
cerebral cortex
thin layer of gray matter covers cerebrum
allows higher brain function
sensory areas
parietal: touch taste temp pain
occipital: vision
temporal: smell and emotion, hearing and patterns
association areas
occipital: recognizing faces
frontal: concentration and analysis
parietal: expressing emotion, understanding and speaking
temporal: stores memories, patterns, categories rhythm
motor areas
primary motor areas: controls skeletal muscles
brocas: speech only
frontal eye field: controls eye muscle
thalmus
recieves sensory info and branches it off into specific part of brain
hypothalmus
regulates body temperature
releases hormones
infindibulum
connects hypothalmus and pituitary gland
posterior pituitary gland
responds to neural signals
pineal gland
body rhythm melatonin
limbic system
emotions odors
midbrain
turn when you hear see smell
pons
control respiratory in between medulla oblongata and midbrain
medulla oblongata
conducts ascending and descending
vital and non vital reflexes
reticular formation
sleep, chooses important impulses
basal nuclei ganglia
produces dopamine relay station for motor impulses
Parkinsons: bn degenerates, dopamine stops = tremors
long term memory
creates new synapes
or repeated stimulation
anatomy of cerebellum
primarily white matter
cerebellar cortex: grey matter covers cerebellum
peduncle
moves body to desired position
inferior: where it is
middle: where it wants to go
superior: sends correcting impulse
physiology of cerebellum
balance