Page 56 - Edited - Webster HEAD AND NECK - part 2-Merge PDF

THE FACIAL (SEVENTH CRANIAL) NERVE-SCHEMATIC SUMMARY.
(After J.C.B. Grant- simplified and amended).

Int. auditory petrosal n.
meatus Lacrimal gland

CEREBELLUM Geniculate
PONS ganglion

Sensory and motor PTERYGOPALATINE Secretory fibres to
roots of Nerve VII glands of nose
MEDULLA PARASYMPATHETIC
ganglion
IN PONTO-CEREBELLAR
ANGLE
PALATE
Stapedius MUSCLE IN MIDDLE (taste buds &
EAR glands)

Secretory fibres
TYMPANIC MEMBRANE (Taste fibres, with cell bodies HN
("EAR DRUM") in GENICULATE ganglion,
are not shown)
Auricular 251
branch conveying general
sensory fibres of N.VIL
Call bodies in
geniculate ganglion

"MUSCLES OF
FACIAL
Stylomastoid foramen EXPRESSION" TASTE fibres with cell
bodies in geniculate
ganglion

ORAL TONGUE
PHARYNGEAL
TONGUE
(stippled)
PAROTID SALIVARY
GLAND (NOT
innervated by facial EPIGLOTTIS
nerve)

SUBMANDIBULAR Sublingual
REMEMBER THAT ALL SENSORY FIBRES OF THE FACIAL NERVE PARASYMPATHETIC SALIVARY
HAVE THEIR CELL BODIES IN THE GENICULATE GANGLION IN GANGLION gland
THE FACIAL CANAL WITHIN THE (PETROUS) PEMPORAL BONE.
THIS GANGLION THEREFORE HAS NO SYNAPSES WITHIN IT &,
LIKE ALL SENSORY GANGLIA, CAN BE INFECTED WITH THE VIRUS Submandibular SALIVARY
OF SHINGLES (HERPES ZOSTER). gland