The Human Brain During the Third Trimester

Interpeduncular

nucleus

Interpeduncular

nucleus

GW29 Coronal

CR 260 mm

Y14-59

Level 10: Section 981

Precentral gyrus

Postcentral gyrus

Supramarginal

gyrus

Cingulate

gyrus

Cingulum

Induseum

griseum

Basal

ganglia

Basal

ganglia

Pu

ta

m

en

Pu

ta

m

en

ClaustruClaustrumm

ExterExternal capsulnal capsulee

Globus

pallidus

Globus

pallidus

Transpontine corticofugal tract

Pontine gray

Middle cerebellar peduncle

Caudate

(tail)

Caudate

(tail)

Interhemispheric fissure

Parietal

lobe

Parietal

lobe

P

a

r

a

c

e

n

t

r

a

l

lo

b

u

le

P

a

r

a

c

e

n

t

r

a

l

lo

b

u

le

Temporal

lobe

Te mporal

lobe

Central sulcus

ThalamusThalamus

In

su

la

r

gy

ru

s

In

su

la

r

gy

ru

s

FFornixornix

Optic

tract

Optic

tract

Lateral Lateral ventriclventriclee

Lateral vLateral ventriclentriclee

CorCorpus callosupus callosumm

Stria

medullaris

Stria

medullaris

Internal

capsule

Internal

capsule

Stria

terminalis

Stria

terminalis

C

er

eb

ra

l (^) p
ed
un
cl
e
C
er
eb
ra
l (^) p
ed
un
cl
e
Su
bs
ta
nt
ia
(^) n
ig
ra
Su
bs
ta
nt
ia
(^) n
ig
ra
Red
nucleus
Red
nucleus
Oculomotor
nuclear complex
Oculomotor
nuclear complex
Zona
incerta
Zona
incerta
Lateral
geniculate
body
Lateral
geniculate
body
PPonsons
Midbrain
tegmentum
Midbrain
tegmentum
Dentate
gyrus
Dentate
gyrus
SSuubbiiccuulluumm
A
m
m
on
's
ho
rn
A
m
m
on
's
ho
rn
Entorhinal cortex (in parahippocampal gyrus)
1 Pa racentral neuroepithelium and subventricular zone
2 Pa racentral stratified transitional field
4 Po sterior striatal neuroepithelium and subventricular zone
5 Strionuclear glioepithelium 11 Lateral migratory stream (cortical)
12 Subpial granular layer (cortical)
10 Te mporal stratified transitional field
Pa rahippocampal neuroepithelium, subventricular zone,
(^8) and stratified transitional field
9 Te mporal neuroepithelium and subventricular zone
6 Alve ar glioepithelium
7 Subgranular zone (dentate)
3 Callosal glioepithelium
Remnants of the germinal matrix, migratory streams, and transitional fields
Third vThird ventricleentricle
Ventral
complex
Ve ntral
complex
Dorsal
complex
Dorsal
complex
Central
complex
Central
complex
33
11
22
44
44
55
66
(^8899)
(^771010)
12
1111
Lateral
fissure
Layer I
Cortical plate
White matter
Hippo-
campus
Hippo-
campus
See detail of brain core
in Plates 181A and B.
Superior
temporal gyrus
Middle
temporal gyrus
Inferior
temporal gyrus
Caudate
(tail)
Caudate
(tail)
Fusiform gyrus
PLATE 160