Neuroanatomy Draw It To Know It

9. Brainstem—Part One 155

4th ventricle

Corticonuclear

tracts

Corticospinal

tracts

Pontine

nuclei

*Cranial nerve nuclei:

(5), 6, 7, (8)

Locus

coeruleus

Lateral

lemniscus

Superior

olivary nuc.

Trapezoid

body

NUCLEI TRACTS

Posterior

Left

Anterior

Right

Middle

cerebellar

peduncle

Inferior

cerebellar

peduncle

Superior

cerebellar

peduncle

Antero-

lateral system

Medial

longitudinal

fasciculus

Tectospinal

tract

Rubrospinal

tract

Medial

lemniscus

Ant. trigemino-

thalamic tract

Central tegmental

tract Ant. spino

cerebellar

Reticular tract

formation Raphe

nuclei

Central gray

area

Pontocerebellar fibers

Basis

Tegmentum

BASIS

TEGMENTUM

*Position of cranial nuclei

NOT accurately depicted

DRAWING 9-4 Th e P o n s