The Human Brain During the Third Trimester

PLATE 65

GW37 Horizontal

CR 320 mm

Y301-62

Lev el 1: Section 341

10 mm

Middle frontal gyrus

Frontal

lobe

Frontal

lobe

Parietal

lobe

Parietal

lobe

Paracentral

lobule

Paracentral

lobule

Superior frontal gyrus

Precentral gyrus

Postcentral gyrus

Cingulate gyrusCingulate gyrus

Cingulate gyrusCingulate gyrus

Superior

parietal

lobu le

Supramarginal gyrus

Angular gyrus

Precuneus

Central

sulcus

Precentral sulcus

Postcentral sulcus

Interhemispheric Interhemispheric ffissureissure

Layer I

Cortical plate

White matter

1 Fr ontal stratified transitional field

2 Pa racentral stratified transitional field

3 Cingulate stratified transitional field

4 Subpial granular layer

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

11

11

22

22

4

4

4

33

33