NROB60H3 Study Guide - Final Guide: Dentate Gyrus, Superior Cerebellar Peduncle, Cerebral Crus

• (A2- P5), If you see a full round superior colliculus and no pineal body then you would have all the

thalamic nuclei (you could also look for more formed lateral ventricles), you would also see the internal

capsule behind the caudate nucleus and the putamen slightly behind that, parallel to the septal

nucleus

• (A1,A2-P5)- beside the thick white and on he cut surface of the cerebellum would be the paraflocculus

• (A3,P5)- at the thin cut layer of the superior colliculus, you would see the fimbria at the anterior pointy

tip of the dentate gyrus, the thin white band moving anteriorally is the extreme capsule and the area

behind of the caudate nucleus (the middle of the brain), slightly white is the globus pallidus

central gray (looks like a vagina)

• ^^beside the line for the III ventricle rostral in the ventral thalamic nucleus but behind it is the

habenulo-interpeduncular tract

• ^^the flap that contains the dentate gyrus is lateral to a wavy edge that contains the LGB (rostral) and

MGB (caudal)

• (B2,P5) –small hole for the III ventricle and the fornix surrounds it

• (C1,P6a)- cut C is the first coronal cut off the front the brain so it MAY be thicker, the claustrum and

putae ae a it oe edial tha usual eause it’s a egiig ut, lateal etile tuked

underneath the genu, and the subcallosal fasciculus is tucked in the top corner

• (C2,P6a)-the lateral olfactory tract lines the bottom W shape and is slightly darker

preoptic area beside the middle column

• (E3,P6a)- he ou see the ut detahed opti hias that’s the last tie ou see glous pallidus

• (F1,P6a)- you see the thick fused band of optic chiasm, and you see structures in the space of the

lateal etile looks like a fae that’s fornix, at this cut you see fornix lateral to the III ventricle line

near the top and caudal to that it the hypothalamus, following the curve of the optic chasm in the

corner you see amygdala

• (F2,P6a)- as soon as you see the optic chiasm extend along the bottom into the structure then you see

the optic tract, you still see the hypothalamus at the same spot, at the corners of the fimbria

• (G1,P6a)- if thee is a deep it hee the lateal etile usuall is ut ude the foi that’s the III

ventricle, and linging the bottm of that opening is the stria medullaris, if you small ball like structures at

dentate gyrus is resting on 2 small bumps which is the habenula, you still see the mammillothalamic

tract and fornix near the base of the curve

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