Neuroanatomy Draw It To Know It

13. Cranial Nerves 5, 7, 9, 10 223

DRAWING 13-5 Cranial Nerve 7: Anatomy — Partial

Internal

acoustic

meatus

CISTERNAL

SEGMENT

Facial

nucleus,

SVE

Abducen’s

nucleus

Superior

salivatory

nucleus, GVE

Pterygopalatine

ganglion, GVE

Tongue:

anterior two-

thirds, SVA

Submandibular

ganglion, GVE

Chorda

tympani

Geniculate

ganglion

Spinal

trigeminal

nucleus,

pars

caudalis,

GSA

Solitary

tract

nucleus,

SVA

Stylomastoid

foramen

Greater

petrosal nerve

Motor

root

Nervus

intermedius

INTRATEMPORAL

SEGMENT

INTRA-AXIAL

SEGMENT

EXTRACRANIAL

SEGMENT

Muscles of facial

expression, SVE

External ear, GSA

Nerve

to stapedius

Pons

Medulla

Cervical

spinal

cord

Internal

genu

(Meatal

segment)

(Horizontal

segment)

(Labyrinthine

segment)

(Mastoid

segment)