The Human Brain During the Third Trimester

(vip2019) #1
Hypoglossal
nuc. (XII)

Hypoglossal
nuc. (XII)

Biventral lobule


uC
en
ta
e
un
cl
eu
s

C
un
ea
te
fa
sc
ic
lu
su

HEMISPHERE


Spinal
tract^ (V)

Spinal
tract^ (V)

Spinal
nucleus^ (V)

Spinal
nucleus^ (V)
Lateral
reticular nuc
.

Lateral
reticular nuc.

So
lit
ar
y
nu
c.

an
d
tr
ac
t

So
lit
ar
y
nu
c.

an
d
tr
ac
t

Cu
ne
nuclate
eus

Cu
ne
nuclate
eus

MMEDULLAEDULLA


MEDULLAMEDULLA


PParamedian lobulearamedian lobule


PParamedian lobulearamedian lobule
PParamedian lobulearamedian lobule

Biventral lobule


BiBiventral lobuleventral lobule


FlocculusFlocculus


Inferior
olive

Inferior
oliv e

In


fe


ri


or


o
liv

e
In

fe


ri


or


o
liv

e


Reticular
formation

Reticular
fo rmation Reticular
formation

Reticular
fo rmation

Pyramidal
decussation

Pyramidal
decussation

PyramidPyramid


Corticospinal
tract

Medial longitudinal


fasciculus
and
tectospinal tract

External cuneate
nucleus

External cuneate
nucleus

Medial lemniscus
(decussation)

Medial lemniscus
(decussation)

Gracilefascicu

lu
s
Gracilefascicu

lu
s

uC
en
ta
e
un
cl
eu
s

Spinocer
ebel
lartr
acts
Spinocer
ebel
lartr
acts

Dorsal
accessory olive

Dorsal
accessory olive

Dorsal motor
nuc. (X )

Dorsal motor
nuc. (X )
Nuc.
ambiguus

Nuc.
ambiguus

Raphe nucRaphe nuc..

C
un
ea
te
fa
sc
ic
lu
su

Me

dia

lac
ces
sory
olive

Me

dia

lac
ces
sory
olive

Gracile
fasciculus

Lateral corticospinal tract

Cuneate
fasciculus

Cuneate nucleus

Gracile nucleus

Central canal

Central autonomic area
Spinal
tract (V)

Spinal nucleus (V)

Medial accessory olive


aL
et
ar
l

er
cit
lu
ra
n^
cu
.

aL
et
ar
l

er
cit
lu
ra
n^
cu
.

Gr
aci
lenucleus
Gr
aci
lenucleus

Cu
nea

te
fas

cic

ul

us

Cu
nea

te
fas

cic

ul

us

Central canal

SSppiinnoocceerreebbeellllaarrttrraaccttss

PyramidPyramid


Corticospinal
tract

HEMISPHEREHEMISPHERE


HEMISPHERE


CEREBELLUM


HEMISPHEREHEMISPHERE


CEREBELLUM


ChorChoroid plexusoid plexus

External germinal layer


Germinal and transitional structures in italics


Ansiform lobule
(Crus I HVIIA)

Ansiform lobu le
(Crus I HVIIA)

External
germinal
layer

Glioepithelium/ependyma

Glioepithelium/ependymaGlioepithelium/ependyma

Section 1381 Section 144 1


PLATE 95B

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