The Human Brain During the Third Trimester

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Dark areas

are artifacts

of mounting

medium

crystallization

GW37 Coronal

CR 350 mm

Y217-65

Level 11: Section 981

See detail of brain core

in Plates 37A and B.

Fr ontal/paracentral neuroepithelium and

subventricular zone

1

7 Te mporal neuroepithelium and subventricular zone

Pa rahippocampal neuroepithelium, subventricular

(^6) zone, and stratified transitional field
2 Fr ontal/paracentral stratified transitional field
8 Te mporal stratified transitional field
Remnants of the germinal matrix, migratory streams, and transitional fields
12 Po sterior striatal neuroepithelium and subventricular zone
13 Strionuclear glioepithelium
14 Diencephalic (thalamic) glioepithelium/ependyma
15 Subpial granular layer (cortical)
4 Callosal sling
5 Fo rnical glioepithelium
11 Lateral migratory stream (cortical)
10 Subgranular zone (dentate)
9 Alve ar glioepithelium
3 Callosal glioepithelium
Temporal
lobe
Te mporal
lobe
Temporal
lobe
Te mporal
lobe
Induseum griseuInduseum griseumm
Pu
ta
m
en
Pu
ta
m
en
Lateral
fissure
Entorhinal cortex
Pontine gray
Middle cerebellar peduncle
Optic
tract
Optic
tract
Precentral gyrus Superior frontal gyrus
Postcentral gyrus
Central sulcus
Superior
temporal
gyrus
Middle
temporal
gyrus
Inferior temporal gyrus
Parahippocampal gyrus
Fusiform gyrus
Frontal
lobe
Frontal
lobe
Interhemispheric
fissure
Insular gyrusInsular gyrus
Lateral
ventricle
Lateral
ventricl e
Lateral vLateral ventriclentriclee
Third
ventricle
Third
ventricle
Red
nucleus
Red
nucleus
FFornixornix
Subth
alam
us
Subth
alam
us
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un
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un
cle
Hippo-
campus
Hippo-
campus
Ammon's hoAmmon's horrnn
Dentate gyruDentate gyruss
SubiculumSubiculum
Fimbria/Fimbria/ffornixornix
Caudate (tail)Caudate (tail)
Caudate (tail)Caudate (tail)
Ventral
complex
Ventral
complex
White
matter
Cortical plate
Layer I
33
1010
55
66
77
88
22
11
1111
Cingulate
gyrus
Cingulate
gyrus
CingulumCingulum
Basal
ganglia
Basal
ganglia
99
MidbraiMidbrainn
PPonsons
TTegmentuegmentumm
ThalamusThalamus
44
CoCorpus callosurpus callosumm
Dorsal
complex
Dorsal
complex
Central
complex
Central
complex
Damaged areas in section
1212
1212
1515
1414
1313
Su
bs
tan
tia
n
igr
a
Su
bs
tan
tia
n
igr
a
P
aracentral
lo
b
ul
e
P
aracentral
lo
bu
le
PLATE 11