ANAT 321

REVIEW

LABORATORY 2

NEUROANATOMY LAB

HEMISPHERESSAGITTAL VIEW

HEMISPHERESSAGITTAL VIEW

3rd ventricle

thalamus

4th ventricle

fornix

Corpus callosum

septum pellicudum

Anterior commissure

Lamina terminalishypothalamus

hypothalamic sulcus

mamillary body

infundibulum

optic chiasmaqueduct

Foramen of Monroe

HEMISPHERESSAGITTAL VIEW

HEMISPHERESSAGITTAL VIEW

Corpus callosum

Septumpellucidum

Fornix

Anteriorcommissure

infundibulum

Thalamus

Mamillarybody

Optic chiasm

Lamina terminalis

Brainstem dorsal viewBRAINSTEM DORSAL VIEW w/ out cerebellum

Brainstem dorsal viewBRAINSTEM DORSAL VIEW w/ out cerebellumSuperior colliculus

inferior colliculus

Lateral geniculate nucleus

Medial geniculate nucleus

Pulvinar

brachium

BRAINSTEM DORSAL VIEW w/ out cerebellum

BRAINSTEM DORSAL VIEW w/ out cerebellumSuperior colliculus

Superior cerebellar peduncle

Middle cerebellar peduncle

Inferior cerebellar peduncle

Nucleus gracilis

Nucleus cuneatus

4th ventricle

Medial geniculate nucleus

Pulvinarinferior colliculus

brachium

TRANSECTED MIDBRAIN

TRANSECTED MIDBRAIN

Cerebral aqueduct

Substantia nigra

Cerebral peduncles

Red nuclei

Inferior colliculus

4th ventricle

REVIEW: LAB2

• How are the lateral ventricles confluent with the 3rd ventricle?

• Answer– The foramen of

Monroe

REVIEW: LAB2

• What structure forms the walls of the third ventricle?

• Answer– The thalamus

REVIEW: LAB2

• Be sure that you understand the skewed "C" shape of the lateral ventricles.

REVIEW: LAB2

• Be sure that you understand the shape of the fornix

• Answer– The fornix is a white

matter fiber intra-hemispheric structure that connects the hippocampus to the mammillary bodies hippocampi

REVIEW: LAB2

• How does CSF flow from the third and to the fourth ventricle?

• Answer– The cerebral

aqueduct

REVIEW: LAB2

• What is the relationship between the internal capsule and the cerebral peduncle?

• Answer– The internal capsule is a collection

of white matter fiber pathways– The cerebral peduncles are a

continuation of the internal capsule

REVIEW: LAB2

• Follow the optic tract

QUIZ

A

B

C

D

E

Answer Key

– A: inferior colliculus – B: red nucleus– C: substantia nigra– D: cerebral aqueduct– E: cerebral peduncle

AB

C

D

E

Answer Key

– A: septum pellucidum– B: fornix– C: fourth ventricle– D: hypothalamic sulcus– E: lamina terminalis

A

B

C

D

E

Answer Key

– A: brachium of the inferior colliculus– B: superior cerebellar peduncle– C: fourth ventricle– D: nucleus cuneatus– E: pulvinar