Neuroanatomy Lecture 2: Topography of the Brain Flashcards
what does the forebrain become x2
diencephalon
hemispheres
what does the midbrain become
brainstem
what does the hindbrain become x2
pons
medulla
what do brainstem centres produce
automatic behaviours essential for survival
whats the yellow and green bits
yellow = pyramids
green = olives
what are the blue and pink things
what does the pink thing do
blue = 4th ventrical
pink = inferior cerebellar peduncle- connects brainstem to cerebellum
what sits posterior to the pons
4th ventrical
whats this
Middle cerebellar peduncle
what does the midbrain develop from
mesencephalon
whats the central cavity in the midbrain
cerebral aqueduct
whats the red thing
cereBRAL peduncle
higher up so ceonnects to cerebrum
whats the blue and purple things
blue = occulomotor
purple = trochlear
what are the 2 blue things
What do they do
dark = superior colliculi
visual reflex
light = inferior colliculi
auditory reflex
whats the purple thing
superior peduncle
how to tell if your looking at the
front x3
the back x2
of the brainstem
front- optic chiasm
also have pituitary gland
AND mamillary bodies
back- colliculi so 4 bumps
and pineal gland
2 functions of cerebellum
Posture maintenance
Fine tuning motor activity
what do pyramidal tracts contain
motor INTENTION
what nuclei control balance and posture
vestibular nuclei
what things feed into the cerebellum
pyramidal tracts- motor
proprioceptors
vestibular nuclei- balance and posture
where does the info from the cerebellum go after its calculated fine movement
to cerebral cortex
what seperates the thalamus and hypothalamus
hypothalmic sulcus
what does the hypothalamus control x5
control of autonomic NS:
Body temperature
food intake
water balance & thirst
sleep-wake cycle
endocrine system functioning
what are the blue and purple things
blue = thalamus around-
purple = 3rd ventrical
what passes through the foramen lacerum
carotid arteries
AKA carotid canal
what are the vertebral arteries a branch of
how to they enter the skull
subclavian
foramen magnum
what are the grey blue and light purple arteries
grey blue = anterior communicating
light purple = posterior communicating
name the
blue
green
purple
red
yellow
arteries
blue = anterior cerebral
green = middle cerebral
purple = posterior cerebral
red = basillar
yellow = vertebral
whats the yellow artery
anterior spinal artery
what arteries supply each colour
blue = ACA
red = MCA
green = PCA
what artery is likely to be blocked if sight is damaged
posterior cerebral artery
what artery is likely to be damaged if theres motor weakness
anterior cerebral artery
what artery is likely to be damaged if speech is affected
middle cerebral artery (of dominant side, so right handed then in left hemisphere)
what do the venous sinuses lie between
2 layers of dura mater
what do the venous sinuses ultimatly drain to
IJV
name the red and yellow parts of the cavernous sinus
red = ICA
yellow = dura mater
name the
purple
light-blue
green
dark blue
nerves
purple = oculomotor- 3
light-blue = trochlear- 4
green = ophthalmic- V1
maxillary- V2
dark blue = abducens
