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Test 3
Structures of the Nervous System, Lateralization, Language
40
Physiology
Undergraduate 3
11/02/2009

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Term
meninges
Definition
layers of tissue on the brain
Term
dura mater
Definition
outer most meninge
Term
arachnoid membrane
Definition
middle meninge (like a web)
Term
pia mater
Definition
inner most meninge
Term
choroid plexuses
Definition
cells that produce cerebral spinal fluid
Term
cerebellum
Definition
smooths muscle movement
Term
vestibular system
Definition
inner ear, semicircular canals
Term
thalamus
Definition
sensory information relay center
Term
massa intermedia
Definition
piece in btw thalami; 30% of ppl don't have one
Term
suprachiasmatic nucleus
Definition
responsible for the circadian rhythm
Term
pineal gland
Definition
secretes melatonin (for sleep)
Term
hypothalamus
Definition
monitors blood composition, salt level, core temp
Term
pituitary gland
Definition
only neurons going into it
Term
tectum
Definition
superior and inferior calliculi
Term
tegmentum
Definition
under thalami; has 4 parts
Term
reticular formation
Definition
alertness
Term
spinothalamic tract
Definition
in tegmentum, brings info about pain/temp
Term
red nucleus
Definition
controls 4 legged movements
Term
substantia nigra
Definition
produces dopamine; imp for movement control & mood
Term
Parkinson's Disease
Definition
reduced dopamine b/c of substantia nigra (tremors)
Term
nucleus accumbens
Definition
pleasure center/rewards (fed by substantia nigra-which makes dopamine)
Term
frontal lobe
Definition
lobe for planning, memory, speech
Term
parietal lobe
Definition
all sensory information is made into a 3D experience
Term
longitudinal fissure
Definition
divides each hemispheres
Term
cingulate gyrus
Definition
understanding/expressing emotions, above corpus callosum, part of limbic system (very old part of brain)
Term
lissencephalic
Definition
smooth brain, reptile brain
Term
columnar arrangement
Definition
central to processing info
Term
spinothalamic tract (location)
Definition
anterolateral system, in front on sides
Term
ipsilateral
Definition
same side (touch)
Term
contralateral
Definition
on other side (pain/temp), sensation crosses over
Term
convergence (in eyes)
Definition
neurons competing with each other so pic is not so detailed
Term
rods
Definition
b&w
Term
cones
Definition
color
Term
lateral geniculate nucleus
Definition
grp of neurons in the thalamus that receive neural impulses from the ganglion cells of the retina
Term
lateral geniculate nucleus
Definition
1st synaptic pt for info coming from eyes; in thalamus
Term
Pathway for images/light (5)
Definition
Optic nerve, optic chiasm, optic tract, lateral geniculate nucleus, occipital lobe
Term
basal ganglia
Definition
globus pallidus, caudate nucleus, putamen
Term
Huntington's Disease
Definition
degredation of the caudate & putamen (genetic)
Term
limbic system
Definition
cingulate gyrus(above corpus callosum), hippocampus, amygdala, olfactory bulbs
Term
Wernicke-Geschwind Model
Definition
W's area, B's area, Arcuate Fasciculus, Angular gyrus
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