ch 15 Flashcards
rostral
anterior
caudal
posterior
ventral
distal (downwards)
dorsal
proximal (upwards)
gyrus
upper brain wrinkle
sulucs
lower crease of brain wrinkle
brain meninges layers
2 layers
periosteal
meningeal
what do the layers form
dural sinuses (to collect used up blood)
falx cerebri
dural layer seperating hemispheres of brain
tentorium cerebelli
dural layer bn cerebrum and cerebellum
lateral ventricles
interventricular foramen bn the “ram horns”
third ventricle
between the lateral
cerebral aqueduct bn 3 and 4
fourth ventricle
in the stemish, below third
narrows and forms central canal
ventricles
collection of cerebrospinal spinal fluid
choroid plexus
blood vessels network that make cerebrospinal fluid
1) CSF is secreted by
choroid plexus in each lateral
ventricle.
2) CSF flows through-
into -
interventricular foramina
third ventricle
3) Choroid plexus in third
ventricle adds
more CSF.
4) CSF flows down cerebral
aqueduct
to fourth ventricle.
5) Choroid plexus in fourth
ventricle adds
more CSF.
6) CSF flows out - and -
two lateral
apertures,
one median
aperture.
7) CSF fills - and bathes external
surfaces of -
subarachnoid space
brain and spinal
cord
8) At - -,
CSF is reabsorbed into
venous blood of dural
venous sinuses.
arachnoid granulations
order the cerebrospinal fluid flows
1) Choroid plexus to lat ventricle
2) thru interventricular formina to 3rd ventricle
3) choroid plex add more
4) down cerebral aqueduct to 4th ventricle
5) choroid plexus (4th) add more
6) flow out 2 lat aperture to one median aperture
7) fills subarachnoid space and stuff
8) at arachnoid granulations, its reabsorbed
what do astrocytes do
wrap perivascular feet around vessle, stimulate the formation of cells that make blood capularies
what can get thru blood brain barrier
lipids, ions, oxygen, glucose, alc nicotine
cerebrum from
telencephalon of forebrain
biggest part
lobes in cerebrum
frontal, parietal lobe, occipital lobe, temporal lobe, insula
frontal lobe responsible for
motor motivation (voluntary)
motivation
planning
memory
mood
emotion
social judgment
agression
parietal lobe (2)
integrates senses
taste
language
visual info
occipital lobe
visuals
temporal lobe
hearing
smell
learning
memory
emotion
insula
understanding spoken language
taste
integrating info from organs
how is the cerebrum separated and connected
longitudinal fissure
corpus callosum
cortex
grey matter of brain
projection tracts
travel vertically
cerebrum to rest of body
commissural tract
cross bn 2 hemispheres
corpus callosum has the msot
association tracts
connections regions wn same hemi
quick