The Human Brain During the Third Trimester

K

K

See this area of cortex

from section 1751

in Plates 29 and 30

GW37 Coronal, CR 350 mm, Y217-65

Level 20: Section 1611

See detail of cerebellum in Plates 46A and B (top).

Level 21: Section 1711

See detail of cerebellum in Plates 46A and B (bottom).

1 Pa rietal neuroepithelium and subventricular zone 5 Te mporal neuroepithelium and subventricular zone

3 Occipital neuroepithelium and subventricular zone

2 Pa rietal stratified transitional field 6 Te mporal stratified transitional field

4 Occipital stratified transitional field

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

8 Subpial granular layer (cortical)

7 External germinal layer (cerebellum)

Damaged areas in section

Temporal

lobe

Te mporal

lobe

Primary

visual

cortex

Angular gyrus

Middle

temporal

gyrus

Lingula?

Parietal

lobe

Parietal

lobe

Interhemispheric

fissure

Lateral

ventricle

Lateral

ventricl e

VVeerrmmisis

White matter

Cortical plate

Layer I

33

(^6655)
77
77
88
22
11
44
CCeerreebbeelllluumm
H
em
isp
her
e
H
em
isp
her
e
Occipital
lobe
Occipital
lobe
Precuneus
Precuneus
CuneusCuneus
CuneusCuneus
Parieto-
occipital
sulcus
Parieto -
occipital
sulcus
Calcarine
sulcus
Calcarine
sulcus
Primary
visual
cortex
Angular gyrus
Lingula?
Parietal
lobe
Parietal
lobe
Interhemispheric
fissure
Lateral
ventricle
Lateral
ventricl e
White matter
Parieto-occipital
sulcus
Cortical plate
Layer I
33
77
88
22
11
44
CCeerreebbeelllluumm
Hemisphe
re
Hemisphe
re
Occipital
lobe
Occipital
lobe
CuneusCuneus
CuneusCuneus
Parieto-
occipital
sulcus
Parieto-
occipital
sulcus
Calcarine
sulcus
Calcarine
sulcus
PLATE 20