week 4 lab Flashcards
what are the primary conscious motor crotexes
post-cruciate gyrus and pre-cruciate gyrus (before and after cruciate sulcus)
what is the premotor and motor area that also does behavior
frontal lobe (area rostral to, and including, the post cruciate gyrus)
what is the conscious somatosensory area (pain, proprioception, touch, temperature) and behavior area
parietal lobe
where is the pareital lobe
area from the frontal lobe to approximately 1/3 distance to transverse fissure
what is the lobe for conscious sight and sight association; behavior
occipital lobe
where is the occipital lobe located
parietal lobe to tansverse fissure
what lobe is conscious hearing and major behavior area
temporal lobe
where is the temporal lobe?
the lateral side of hemisphere
behavior is unique to the
entire forebrain
where is the neopallium
dorsal to the lateral rhinal sulcus
where is the paleopallium
ventral to the lateral rhinal sulcus
what is the smell brain; where a lot of smell association occurs
paleiopallium
what is the lob for conscious smell and smell association; also behavior
piriform lobe
what sulcus helps you get oriented when looking for temporal lobe
sylvian sulcus
where are the neruons of olfactory nerve located
in olfactory bulb
what part functions in balance and equilibrium
flocculus
where is the flocculus
most lateral small parts of each hemisphere
what separates the cerebellum into rostral and caudal lobes
primary fissure
what is located between flocculuses
nodulus
where are the transverse pontine fibers located
in the metencephalon
what is the middle cerebellar peduncle
continuation of transverse pontine above CN V
what is the choroid plexus of 4th ventricle
contains lateral aperture for CSF release into subarachnoid
lateral olfactory tract travels to
piriform lobe
optic chiasma is right at transition of
PNS into CNS
If PLR works, the lesion is where?
caudal to the chiasm
review PLR
X
Mamillary bodies function in
autonomic involluntary control
where are crus cerebri located
in mesencephalon
what is the only nerve to arise from the dorsal brain stem
cn IV
Transverse pontine fibers ascend into
middle cerebellar peduncle
transverse pontine fiber function
transmits UMN info from cell bodies of frontal lobe into the cerebellum (most fibers are for skilled motor control)
unconcsious proprioception tracts go to
cerebellum
what are the pyramids
umn tract form cell bodies of frontal lobe
approximate junction of MO and spinal cord
can only be determined histologically
what cranial nerves live on ventral aspect; in more midline than other nerves
III, VI, XII
Ventricular system consists of
lateral ventricles, 3rd ventricle, mesencephalic aqueduct, 4th ventricle
where is the 3rd ventricle located
diencephalon
where is the 4th ventricle
metencephalon and myelencephalon
what are the common obstruction sites of the ventricular system
inteventricular foramina
mesencephalon
lateral aperture
what is the function of the choroid plexus
produces CSF (production is not pressure dependent, so will not stop productione ven if there is an obstruction)
what is teh corpus callosum
white mattter axons transversely oriented that communicate with right an left brain
what is the fornix function
talk to mamillary bodies; part of the lymbi system; major behavior area
what is the septum pellucidum
paper thin membane that separates right ventricle from left ventricle
cingulate gyrus functions in
behavior (the target of furious rabies)
callosal sulcus functions in
separating the corpus callosum from the angulate gyrus
subcallosal area
neurons sweep to mamillary bodies
rostral lobe of cerebeluum
motor control of the trunk muscle
caudal lobe of cerebellum
controlling muscle activity of distal appendages
medulla of cerebellum
white matter (axons); aslo called arbor vita
pineal gland
produces melatonin in darkness; sleep/wake pattern; photoperiod function (can be different shapes in different brains); just know it is a normal structure
interthalamic adhesion
sensory relay for all conscious sensory modality; all conscious modalities synapse in thalamus
caudal commissure
cross over of pretectal neurons for PLR
REVIEW PLR AND PARTS OF THE BRAINI
X
