The Human Brain During the Third Trimester

Fr ontal

neuroepithelium and

subventricular zone

Fr ontal stratified

transitional field

Rostral migratory

stream (source area)

Callosal glioepitheliuCallosal glioepitheliumm

Anterolateral striatal neuroepithelium and subventricular zone

Anteromedial striatal neuroepithelium and subventricular zone

Strionuclear

glioepithelium

Strionuclear

glioepithelium

FFo rnical glioepitheliuornical glioepitheliumm

Fornical

glioepithelium

Fo rnical

glioepithelium

Posterior lim

b

Posterior lim

b

Anter

ior lim

b

Anter

ior lim

b

In

te

rn

al

ca

psu

le

In

te

rn

al

ca

psu

le

Lateral

ventricle

Lateral ventricle

Lateral

ventricle

Lateral

ventricle

Co

rp

us

cal

los

um

Co

rp

us

cal

los

um Co

rp

us

ca

llo

su

m

C

or

pu

s^ c

all

os

um

Stem cells of

choroid plexus

Stem cells of

choroid plexus

Po sterior striatal neuroepithelium

and subventricular zone

Pa rietal/temporal

neuroepithelium and

subventricular zone

Pa rietal/temporal

stratified transitional

field

Visual radiation

Cave of the

septum

Cave of th e

septum

FFornixornix

F

o

rn

ix

F

o

rn

ix

F

o

rn

ix

F

o

rn

ix

Ext

ern

al^ c

aps

ule

Ext

ern

al^ c

aps

ule

Caudate

(head)

Caudate

(head)

Lateral

septal nucleus

Lateral

septal nucleus

Caudate

(tail)

Caudate

(tail)

C

o

r

p

u

s

c

a

ll

o

s

u

m

(g

e

n

u

)

C

o

r

p

u

s

c

a

ll

o

s

u

m

(g

e

n

u

)

C

or

pus callosum

(splenium

)

C

orpus callosum

(splenium

)

Cingulate gyrus

(retrosplenial area)

Cingulate gyrus

(retro splenial area)

CingulumCingulum

Cingulate gyruCingulate gyruss

Callosal glioepitheliuCallosal glioepitheliumm

Induseum

griseum

Induseum

griseum

Interhemispheric fissur e

Interhemispheric fissure

Antero-

medial

nucleus

Antero-

medial

nucleus

Anteroventral

nucleus

Anteroventra l

nucleus

Dorsomedial

nucleus

Dorsomedial

nucleus

Do

rso

la

ter

al

nu

cle

us

Do

rso

la

ter

al

nu

cle

Ventral us

anterior

nucleus

Ventral

anterior

nucleus

Ventral

lateral

nucleu

s

Ventral

lateral

nucleu

s

PulvinarPulvinar

Stria

terminalis

Stria

terminalis

Stria

terminalis

Stria

terminalis

Stria medullaris

R

e

t

i

c

u

la

r

n

u

cl

eu

s

R

e

t

i

c

u

la

r

n

u

cl

eu

s

CCllaauussttrruumm

PutamenPutamen

Insular gyruInsular gyruss

Choroid

plexus

Chor oid

plexus

AN

TE

RIO

R

CO

MP

LE

X

AN

TE

RIO

R

CO

MP

LE

X

DORSAL

COMPLEX

DORSAL

COMPLEX

DO

RS

AL

(^) C
OM
PL
EX

DO

RS

AL

(^) C
OM
PL
EX

POSTERIO

R

COMPLEX

POSTERIO

R

COMPLEX

CEN

TR

AL

CO

MP

LE

X

CEN

TR

AL

CO

MP

LE

X

R

E

T

IC

U

LA

R

BE

LT

R

E

T

IC

U

LA

R

BE

LT

VE

NT

RA

L (^) C
OM
PL
EX

VE

NT

RA

L (^) C
OM
PL
EX

C

ne

tr

al

la

ter

al

nu

cle

us

C

ne

tr

al

la

ter

al

nu

cle

us

PERIV

ENT

RIC

ULA

RC

OM

P

L

E

X

PERIV

ENT

RIC

ULA

RC

OM

P

L

E

X

Periventricu

lar

nuc

le

i

Periventricu

lar

nuc

le

i

B

A

SA

L

(^) G
A
N
G
LI
A
B
A
SA
L
(^) G
A
N
G
LI
A
SEPTUMSEPTUM
THALAMUSTHALAMUS
Lateral fissure Lateral fissure
Antero-
dorsal nucleus
Antero-
dorsal nucleus
GlioepitheliuGlioepitheliumm
Germinal and transitional structures in italics
Frontal
lobe
Frontal
lobe
Paracentral
lobule
Paracentral
lobu le
Precentral
sulcus
White matter
Cortical plate
Layer I
Callosal slinCallosal slingg
Callosal slinCallosal slingg
PLATE 82B