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Neuroanatomy 10. Sectional Anatomy of the Brain

10.4 Coronal Sections: VII and VIII

Neuroanatomy 10. Sectional Anatomy of the Brain

Longitudinal cerebral fissure

Corpus callosum, trunk

Choroid plexus of lateral ventricle

Fornix, crus Thalamic nudei

Caudate nudeus, taił

Thalamus,

pulvinar

Habenula

Posterior

commissure

Brainstem

Cerebellar

tonsil

Middle cerebellar peduncle

A Coronal section VII

Among the diencephalic and telencephalic nudei, we can still identify the thalamus and ocdpital portions of the caudate nudeus, which become progressively smaller in the following sections until they finally disappear (see C and p. 300). The occipital part of the hippocampus can be seen be-low the medial wali of the lateral ventricle. This section cuts the brainstem along the cerebral aqueduct (see C). The cerebellum is connected to the brainstem by three white-matter stalks: the superior cerebellar peduncle (mainly efferent), middle cerebellar peduncle (afferent), and inferior cerebellar peduncle (afferent and efferent). Because the middle

Superior

cerebellar

peduncle

Middle

cerebellar

peduncle

Inferior

cerebellar

peduncle

B Cerebellar pedundes on the brainstem a Posterior view. b lateral view.

cerebellar peduncle extends further i ■ r o~, duncles (notę its relationship to the braiisa duncle to appear in this frontal-to-occor= a A, p. 296, and D, p. 297). The superior csM posterior side of the pons and thus aopeasia p. 300). There are no natural anatom ca roana and inferior cerebellar pedundes. and rual rately labeled in the sections. The the brain when this section was prera-ec. m veins appear in this and the followirę ^“or.

Rhomboid

fossa