The Human Brain During the Third Trimester

GW37 Coronal

CR 350 mm

Y217-65

Level 16: Section 1221

See detail of brain core and

cerebellum in Plates 42A and B.

Damaged areas in section

Temporal

lobe

Te mporal

lobe

Induseum griseuInduseum griseumm

Motor nucleus (VII)

Inferior olive

Pyramid

Motor nucleus (V)

Locus coeruleus

Middle cerebellar peduncle

Postcentral gyrus

Superior parietal lobu le

Supramarginal

gyrus

Angular gyrus

Middle

temporal

gyrus

Inferior temporal gyrus

Para-

hippocampal

gyrus

Para -

hippocampal

gyrus

Raphe nuclear complex

Fusiform gyrus

Parietal

lobe

Parietal

lobe

Interhemispheric

fissure

Lateral

ventricle

Lateral

ventricl e

Cerebral aqueduct/

Fourth ventricle

Cerebral aqueduct/

Fourth ventricle

TTeeccttuumm Inferior

colliculus

Inferior

colliculus

Hi

pp

oc

am

pu

s

Hi

pp

oc

am

pu

s

Ammon's hoAmmon's horrnn

SubiculumSubiculum

Fimbria/Fimbria/ffornixornix

White

matter

Cortical plate

Layer I

33

1010

55

66

77

88

22

11

1111

Cingulate

gyrus

Cingulate

gyrus

CingulumCingulum

99

MidbraiMidbrainn

PPonsons

(^44) Corpus callosum
(splenium)
Corpus callosum
(splenium)
Paracentral
lobule
Paracentral
lobule
MedullaMedulla
C
er
eb
ellu
m
Hem
isp
her
e
Hem
isp
her
e
Hippocampal
commissure
Hippocampal
commissure
IsthmusIsthmus
1 Pa racentral/parietal neuroepithelium and subventricular zone 6 Te mporal neuroepithelium and subventricular zone
Pa rahippocampal neuroepithelium, subventricular zone,
and stratified transitional field
5
2 Pa racentral/parietal stratified transitional field^7 Te mporal stratified transitional field
Remnants of the germinal matrix, migratory streams, and transitional fields
9 Mesencephalic glioepithelium/ependyma
11 Subpial granular layer (cortical)
10 External germinal layer (cerebellum)
4 Fo rnical glioepithelium
8 Alve ar glioepithelium
3 Callosal glioepithelium
Choroid
plexus
Choroid
plexus
PLATE 16