Gross Anatomy of the Brain and Spinal Cord 2

Question 1

what are the three parts of the corpus callosum

Answer 1

body
genu
splenium

Question 2

what roughly marks the location of visual cortex

Answer 2

calcarine sulcus

Question 3

what is the corpus callosum formed by

Answer 3

myelinated axons - white matter

Question 4

what fibres run from the internal capsule

Answer 4

corona radiata

Question 5

what are the five basal nuclei

Answer 5

caudate nucleus
putamen
internal pallidum
lentiform nucleus
amygdala

Question 6

where does the hypothalamus sit in relation to the thalamus

Answer 6

inferior and anterior

Question 7

what is the hypothalamus function

Answer 7

monitoring internal environment (eg blood glucose and body temperature) and controls release of hormones from pituitary gland

Question 8

what connects the hypothalamus and pituitary gland

Answer 8

pituitary stalk

Question 9

what disease is caused by an overproduction of growth hormone by pituitary gland

Answer 9

acromegaly

Question 10

what are the ventricles of the brain

Answer 10

2 x lateral ventricles
2 midline ventricles (3 and 4)

Question 11

where is the third ventricle situated

Answer 11

with the thalamus on either side

Question 12

what is the lateral ventricles connected to the third ventricle by

Answer 12

intraventricular foramen

Question 13

where is the fourth ventricle located

Answer 13

between the brainstem and cerebellum

Question 14

what is the function of the ventricles

Answer 14

produce and circulate CSF

Question 15

what is CSF produced by

Answer 15

choroidal epithelial cells in choroid plexus in each ventricle

Question 16

where is CSF drained into after the fourth ventricle

Answer 16

subarachnoid space via median apeture or 2 paired lateral apeture

Question 17

how is the CSF reabsorbed in the subarachnoid space

Answer 17

via arachnoid villi and granulations which then drain into the dural-venous sinuses (especially superior sagittal sinus)

Question 18

what are the three regions of the brainstem

Answer 18

midbrain
pons
medulla

Question 19

what do spinal nerves divide into after exiting the intervertebral foramen of the vertebral column

Answer 19

ventral and dorsal rami

Question 20

what is the spinal cord protected by

Answer 20

pia mater
subarachnoid space with CSF
arachnoid mater
dura mater
epidural fat
vertebral canal