Gross Anatomy of the Brain and Spinal Cord 2 Flashcards
what are the three parts of the corpus callosum
body
genu
splenium
what roughly marks the location of visual cortex
calcarine sulcus
what is the corpus callosum formed by
myelinated axons - white matter
what fibres run from the internal capsule
corona radiata
what are the five basal nuclei
caudate nucleus
putamen
internal pallidum
lentiform nucleus
amygdala
where does the hypothalamus sit in relation to the thalamus
inferior and anterior
what is the hypothalamus function
monitoring internal environment (eg blood glucose and body temperature) and controls release of hormones from pituitary gland
what connects the hypothalamus and pituitary gland
pituitary stalk
what disease is caused by an overproduction of growth hormone by pituitary gland
acromegaly
what are the ventricles of the brain
2 x lateral ventricles
2 midline ventricles (3 and 4)
where is the third ventricle situated
with the thalamus on either side
what is the lateral ventricles connected to the third ventricle by
intraventricular foramen
where is the fourth ventricle located
between the brainstem and cerebellum
what is the function of the ventricles
produce and circulate CSF
what is CSF produced by
choroidal epithelial cells in choroid plexus in each ventricle
where is CSF drained into after the fourth ventricle
subarachnoid space via median apeture or 2 paired lateral apeture
how is the CSF reabsorbed in the subarachnoid space
via arachnoid villi and granulations which then drain into the dural-venous sinuses (especially superior sagittal sinus)
what are the three regions of the brainstem
midbrain
pons
medulla
what do spinal nerves divide into after exiting the intervertebral foramen of the vertebral column
ventral and dorsal rami
what is the spinal cord protected by
pia mater
subarachnoid space with CSF
arachnoid mater
dura mater
epidural fat
vertebral canal
