The Human Brain During the Third Trimester

GW37 Coronal

CR 350 mm

Y217-65

Level 17: Section 1311

See detail of brain core and

cerebellum in Plates 43A and B.

Damaged areas in section

Temporal

lobe

Temporal

lobe

Vestibular nuclear complex

Inferior olive

Pyramid

Superior cerebellar peduncle

Middle and inferior cerebellar peduncles

Superior parietal lobu le

Su pramarginal

gyrus

Angular

gyrus

Middle

temporal

gyrus

Inferior temporal

gyrus

Ci

ngu

lat

e^ gy

rus

(re

tro

spl

eni

al^ a

rea

)

Ci

ngu

lat

e^ gy

rus

(re

tro

spl

eni

al^ a

rea

)

Raphe nuclear complex

Fusiform gyrus

Flocculus

Parietal

lobe

Parietal

lobe

Interhemispheric

fissure

Lateral

ventricle

Lateral

ventricl e

Fourth

ventricle

VVeerrmmiiss

White

matter

Cortical plate

Layer I

33

1212

55

66

77

88

22

(^11) Cingulat
e
gyrus
Cingulate
gyrus
CingulumCingulum
99
11
11
1010
44
Corpus callosum
(splenium)
Corpus callosum
(splenium)
MedullaMedulla
PPonsons
C
er
eb
el
lu
m

H

em

isp

he

re

H

em

isp

he

re

Choroid

plexus

Choroid

plexus

Occipital

gyrus

Occipital

gyrus Occipital

lobe

Occipital

lobe

PrPrecuneusecuneus

1 Pa rietal neuroepithelium and subventricular zone 7 Te mporal neuroepithelium and subventricular zone

5 Occipital neuroepithelium and subventricular zone

Cingulate neuroepithelium, subventricular zone,

(^4) and stratified transitional field
2 Pa rietal stratified transitional field 8 Te mporal stratified transitional field
9 Medullary glioepithelium/ependyma
10 Pontine glioepithelium/ependyma
6 Occipital stratified transitional field
Remnants of the germinal matrix, migratory streams, and transitional fields
12 Subpial granular layer (cortical)
11 External germinal layer (cerebellum)
3 Callosal glioepithelium
PLATE 17