The Human Brain During the Third Trimester

Level 13: Section 860

GW26 Horizontal, CR 235 mm, Y16-59

TTeemmppoorraal lol lobbee

TTeemmppoorraal lol lobbee

Cerebellum

(hemisphere)

Cere bellum

(hemisphere )

Fo

ru

th

ve

tn

ri

cl

e

Fo

ru

th

ve

tn

ri

cl

e

F

ou

rt

h

ve

nt

ri

cl

e

F

ou

rt

h

ve

nt

ri

cl

e

Olfactory peduncle

Inferior temporal gyrus

Inferior temporal gyrus

Layer I

Layer I

White matter

Cortical plate

11

3

4

4

4

4

22

3

5

5

Cochlear nuclei

Cochlear nuclei

Middle cerebellar peduncle

Middle cerebellar peduncle

Inferior cerebellar peduncle

Inferior cerebellar peduncle

Gracile fasciculus

Cuneate fasciculus

Lateral corticospinal

tract

Gracile fasciculus

Lissauer's tract

Cuneate fasciculus

Lateral corticospinal tract

Ve ntral corticospinal

tract

Spinal cord

Spinal cord

MedullaMedulla

MedullaMedulla

Tr anspontine corticofugal tract

Pontine gray

Transpontine corticofugal tract

Pontine gray

Nerve V (root)

Vestibular nuclear complex

Cuneate nucleus

Superior olive complex

Superior olive complex

PPonsons

Cerebellum

(hemisphere)

Cere bellum

(hemisphere )

PPonsons

Level 14: Section 880

Entorhinal cortex

Remnants of the germinal matrix, migratory streams, and transitional fields

1 Rostral migratory stream

2 Medullary glioepithelium/ependyma

3 External germinal layer (cerebellar)

4 Subpial granular layer (cortical)

5 Dorsal funicular myelination gliosis

22

See detail of brain core and

cerebellum in Plates 240A and B.

See detail of brain core and

cerebellum in Plates 241A and B.

PLATE 228