Term
Forebrain aka
divisions (2) |
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Definition
prosencephalon
cerebrum (cerebral hemispheres)
diencephalon |
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Term
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Definition
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Term
hindbrain aka
divisions (2) |
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Definition
metencephalon (pons + cerebrum)
myenlencephalon (medulla oblongata) |
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Term
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Definition
midbrain + hindbrian only
thalamus, being part of the forebrain, is not included |
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Term
cerebral hemispheres--lobes, gyri, fissures, sulci
composition + fcns |
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Definition
gray matter (neuron cell bodies) at surface
white matter (axon bundles) deeper
fcn: conscious thought processes, intellectual fcns, memory storage and retrieval, voluntary motor activities |
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Term
cerebral hemisphere--basal nuclei
define + fcn |
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Definition
clusters of neuron cell bodies in deep retions of cortex
fcn: subconscious modulation of voluntary motor commands |
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Term
| limbic system divisions (4) + fcn |
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Definition
limbic lobe
hippocampus
amygdaloid body
fornix
fcn: processing memories, forming emotions and drives |
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Term
| diencephalon divisions (3) |
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Definition
epithalamus
thalamus
hypothalamus |
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Term
epithalamus
part of...
contains...
fcn... |
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Definition
part of diencephalon
contains pineal gland
makes melatonin, circadian rythem |
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Term
thalamus
part of...
location...
fcn... |
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Definition
part of diencephalon
pari of thalami surround the third ventricle
fcn: a Complex fo nuclei that serve as a way of station for all incoming sensory info (from all parts of the body except olfactory lobes). relays somatosensory info to cerebral cortex |
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Term
hypothalamus
part of...
locaation...
fcn... |
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Definition
part of diencephalon
surrounds third ventricle
fcns: emotional and visceral center, controls pituitary gland, autonomic nervous sys, body temp, satiety
master control of endocrine sys |
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Term
| midbrain/mesencephalon components (3) |
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Definition
tectum (roof) w/ corpora quadrigemina
cerebral aqueduct
cerebral peduncles (white matter) |
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Term
tectum
part of...
divisions + fcns... |
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Definition
part of midbrain
superior colliculi--visual reflexes
inferior colliculi--auditory reflexes |
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Term
| cerebral peduncles (define) |
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Definition
| white matter of midbrain; bundles of myelinated axons ascending to thalamus, and descending to spinal cord |
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Term
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Definition
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Term
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Definition
"bridge"
are the middle cerebellar peduncles connecting axons from either side of the cerebellum
two other cerebellar peduncles contain axons from the midbrain (superior CP) and from medulla oblongata (the inferior CP)
fcn: smooth movement (gets ifno from prefronal gyrus; sends to CB)
has various nuclei; many associated w/ cranial nerve cell bodies |
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Term
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Definition
consists of two hemispheres
det muscle lenght and tension
subconscious maintenance of posture and equilibrium
programming and fine tuning of voluntary and involuntary movement |
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Term
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Definition
connects brain stem and spinal cord
many ascendign and descending tracts form the white matter of the organ
grey matter contains relay centerrs for incoming sensory neurons for the cell boodies of five cranial nerves
reflex centers for rtgulation of unconcious activities such as resp, heart rate and blood flow |
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Term
| ventricles of the brain (4) |
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Definition
1 lateral ventricles (2) within cerebral hemispheres
2 third ventricle w/in diencephalon
3 cerebral aqueduct within midbrain
4 fourth ventricle w/in hindbrain |
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Term
left frontal lobe (2)
left parietal lobe |
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Definition
broca: speech prod
primary motor cortex
weirnicke: understanding speech
primary somatosensory cortex: skin and touch |
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Term
| endothelial cells sit on _____ and are continous. tight jcns interconnect cells |
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Definition
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Term
| choroid plexus (location and fcn) |
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Definition
main source of cerebrospinal fluid
found in each ventricle |
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Term
| cranial nerves that also cary parasympathetic neurons (4) |
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Definition
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Term
| cerebral hemisphere cranial nerves |
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Definition
1-olfactory nerve
2-optic nerve |
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Term
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Definition
3-occulomotor nerve
4-trochlear nerve |
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Term
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Definition
5-trigeminal nerve (largest cranial nerve0
a. V1-ophthalamic branch
b. V2-maxillary branch
c. V3-mandibular branch
6-abducens nerve
7-facial nerve
8-vestibulococlear nerve |
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Term
| medulla oblongata cranial nerves |
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Definition
8-vestibulococlear nerve (vestibular division)
9-glossopharyngeal nerve
10-vagus nerve
11-accessory nerve
12-hypoglossal ("under the tongue") |
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Term
tracks (define)
associated
commisural
projection |
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Definition
bundles of axons
associated tracts interconnect lobes
commisural tracts interconnect hemispheres
projection tracts leave hemispheres to connect other parts of the CNS |
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Term
| cranial nerves going thru superior orbital fissure (sphenoid bone) |
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Definition
oculomotor
trochlear
trigeminal V1-opthalmic
abducens |
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Term
| cranial nerves going thru internal auditory maeatus (temporal bone) to stylomastoid foramen |
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Definition
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Term
| cranial nerves going thru jugular foramen (occipital bone) |
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Definition
glossopharyngeal
vagus
spinal accessory (after going thru foramen magnum) |
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