The Human Brain During the Third Trimester

(vip2019) #1
Lateral ventricle PrPrecuneusecuneus

Temporal
lobe

Te mporal
lobe

Lateral
ventricle

Lateral
ventricl e

Middle and inferior
frontal gyri

Superior
frontal
gyrus

Interhemispheric fissure

Precentral and
postcentral gyri

Superior temporal gyrus?

Cingulate gyrus
(retrosplenial area)

Cingulate gyrus
(retro splenial area)

Paracentral
lobule

Paracentral
lobu le

SeptumSeptum


ThalamusThalamus


B
as

al
ga

ng
lia

B
as

al
ga

ng
lia

Frontal
lobe

Frontal
lobe

Parietal
lobe

Parietal
lobe
CCllaauussttrruumm

IInnssuullaarrggyyrruuss

CingulumCingulum

ChorChoroid plexusoid plexus

Lateral
fissure

Late
ral
fissu
re

GW30 Horizontal


CR 260 mm


Y187-65


Level 4: Section 521


The splenium of the corpus callosum was cut during processing.

5 Callosal sling


2 Fr ontal neuroepithelium and subventricular zone


7 Pa rietal neuroepithelium and subventricular zone


3 Fr ontal stratified transitional field


1 Rostral migratory stream (source area)


6 Fo rnical glioepithelium


4 Callosal glioepithelium


8 Pa rietal stratified transitional field


9 Po sterior sriatal neuroepithelium and subventricular zone


10 Anterolateral striatal neuroepithelium and subventricular zone


11 Anteromedial striatal neuroepithelium and subventricular zone


13 Septal glioepithelium/ependyma


14 Subpial granular layer (cortical)


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


Spleniu

m

Spleniu

m

Spleniu

m

Spleniu

m
GenuGenu

Supramarginal and
angular gyri

Superior
parietal
lobu le

Cingulate
gyrus

Cingulate
gyrus

11


22


66


55


55


33


44


44


(^9977)
1010
1212
1111
14
13
88
In
ter
na
lca
psu
le
In
ter
na
lca
psu
le
Co
rpu
sc
al
lo
su
m
Co
rpu
sc
al
lo
su
m
Dorsal
complex
Dorsal
complex
Ven
tral
com
plex
Ven
tral
com
plex
Po
st
er
io
r
co
m
pl
ex
Po
st
er
io
r
co
m
pl
ex
Anterior
complex
Co
rpus
callosum
Co
rpus
callosum
Layer I
Cortical plate
White matter
Occipital
lobe?
Occipital
lobe?
Parieto-
occipital
sulcus
Parieto-
occipital
sulcus
See detail of brain core
in Plates 133A and B.
12 Strionuclear glioepithelium
PLATE 115

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