Neuroanatomy Lecture 2: Topography of the Brain

Question 1

what does the forebrain become x2

Answer 1

diencephalon
hemispheres

Question 2

what does the midbrain become

Answer 2

brainstem

Question 3

what does the hindbrain become x2

Answer 3

pons
medulla

Question 4

what do brainstem centres produce

Answer 4

automatic behaviours essential for survival

Question 5

whats the yellow and green bits

Answer 5

yellow = pyramids
green = olives

Question 6

what are the blue and pink things

what does the pink thing do

Answer 6

blue = 4th ventrical
pink = inferior cerebellar peduncle- connects brainstem to cerebellum

Question 7

what sits posterior to the pons

Answer 7

4th ventrical

Question 8

whats this

Answer 8

Middle cerebellar peduncle

Question 9

what does the midbrain develop from

Answer 9

mesencephalon

Question 10

whats the central cavity in the midbrain

Answer 10

cerebral aqueduct

Question 11

whats the red thing

Answer 11

cereBRAL peduncle

higher up so ceonnects to cerebrum

Question 12

whats the blue and purple things

Answer 12

blue = occulomotor
purple = trochlear

Question 13

what are the 2 blue things

What do they do

Answer 13

dark = superior colliculi
visual reflex

light = inferior colliculi
auditory reflex

Question 14

whats the purple thing

Answer 14

superior peduncle

Question 15

how to tell if your looking at the
front x3
the back x2
of the brainstem

Answer 15

front- optic chiasm
also have pituitary gland
AND mamillary bodies

back- colliculi so 4 bumps
and pineal gland

Question 16

2 functions of cerebellum

Answer 16

Posture maintenance
Fine tuning motor activity

Question 17

what do pyramidal tracts contain

Answer 17

motor INTENTION

Question 18

what nuclei control balance and posture

Answer 18

vestibular nuclei

Question 19

what things feed into the cerebellum

Answer 19

pyramidal tracts- motor
proprioceptors
vestibular nuclei- balance and posture

Question 20

where does the info from the cerebellum go after its calculated fine movement

Answer 20

to cerebral cortex

Question 21

what seperates the thalamus and hypothalamus

Answer 21

hypothalmic sulcus

Question 22

what does the hypothalamus control x5

Answer 22

control of autonomic NS:

Body temperature
food intake
water balance & thirst
sleep-wake cycle
endocrine system functioning

Question 23

what are the blue and purple things

Answer 23

blue = thalamus around-
purple = 3rd ventrical

Question 24

what passes through the foramen lacerum

Answer 24

carotid arteries

AKA carotid canal

Question 25

what are the vertebral arteries a branch of

how to they enter the skull

Answer 25

subclavian

foramen magnum

Question 26

what are the grey blue and light purple arteries

Answer 26

grey blue = anterior communicating

light purple = posterior communicating

Question 27

name the
blue
green
purple
red
yellow

arteries

Answer 27

blue = anterior cerebral
green = middle cerebral
purple = posterior cerebral
red = basillar
yellow = vertebral

Question 28

whats the yellow artery

Answer 28

anterior spinal artery

Question 29

what arteries supply each colour

Answer 29

blue = ACA
red = MCA
green = PCA

Question 30

what artery is likely to be blocked if sight is damaged

Answer 30

posterior cerebral artery

Question 31

what artery is likely to be damaged if theres motor weakness

Answer 31

anterior cerebral artery

Question 32

what artery is likely to be damaged if speech is affected

Answer 32

middle cerebral artery (of dominant side, so right handed then in left hemisphere)

Question 33

what do the venous sinuses lie between

Answer 33

2 layers of dura mater

Question 34

what do the venous sinuses ultimatly drain to

Answer 34

IJV

Question 35

name the red and yellow parts of the cavernous sinus

Answer 35

red = ICA
yellow = dura mater

Question 36

name the
purple
light-blue
green
dark blue

nerves

Answer 36

purple = oculomotor- 3
light-blue = trochlear- 4
green = ophthalmic- V1
maxillary- V2
dark blue = abducens