Page 20 - Edited - Webster HEAD AND NECK - part 2-Merge PDF

THE FACIALNERVE, THE PALATE & NASAL CAVITY HN 218

The TRIGEMINAL NERVE is the Cs.N. of the first branchial arch ( ), and is SOMATY i.e. SKELETO-

MOTOR, GENERAL SENSORY (TOUCH, PAIN, TEMPERATURE). The FACIAL NERVE (CS N VII)
Supplies the first arch with two innervation:
A PARASYMPATHETIC TRIGEMINAL SENSORY GANGLION (asyntactic).
SECRETOMOTOR
TOUCH, PAIN, TEMPERATURE
INTERNAL AUDITORY V1
MEATUS V2 (MAXILLARY)
V3 FORAMEN ROTUNDUM ( ).
POSITION OF
MIDDLE
FACIAL FOSSA PTERYGOPALATINE
NERVE FORAMEN (SHEET134)
MIDOLE EAR NASAL
FACIAL CAVITY PETROSAL NASAL BRANCHES OF
CANAL NERVE V2 (SHEET 134)
STYLOMASTOID PTERYGO PALATINE
FORAMEN GANGLION: TO GLANDS OF
SKELETOMOTOR FACIAL SECRETOMOTOR, NASAL CAVITY
NERVE TO MUSCLES OF SYNAPTIC, PALATINE
FACAL EXPRESSION. PARASYMPATHETIC CANAL
(LOCATION- ) PALATINE NERVE

GLANDS OF PALATINE MUCOSA
1) parasympathetic recretomotor - to the sublingual & submandibular major Salivary glands, and
the myriad minor salivary glass of the anterior 2/3 of the tongue and the entire palate, as well as
the uncons glands of the nasal cavity & paranasal are sinuses the additional synastic gouglia are
the pterygopalatine (A, alove) and Anlamandibulas (q.v.).

B PARASYMPATHETIC SENSORY: CHEMORECEPTIVE - TASTE
TRIGEMINAL SENSORY GANGLION
GENICULATE
GANGLION OF FACIAL (ASYNAPTIC): GENERAL SENSATION
NERVE: SENSORY &  V1 (TOUCH, PAIN, TEMPERATURE)
ASYNAPTIC V2 (MAXILLARY)
FACIAL
NERVE POSITION OF FORAMEN ROTUNDUM CSHEETS

PTERYGOPALATINE
FORAMEN
MIDDLE EAR PETROSAL NASAL BRANCHES
CAVITY NERVE  OF V2 (SHEET 134)
FACIAL EMERGES FROM
CANAL PETROUS TEMPORAL
BONE PALATINE CANAL
PALATINE NEVE GENERAL
2) Parasympathetic sensory fibres: This case SENSATION FROM
these annerrate taste buds, on the astecin NASAL & AIR
SINUS MUCOSA:
2/3 of the tongue, as well as the palate. The FROM TASTE BUDS TOUCH, PAIN,
cell bodies of the asrous are the OF PALATE (VII) TEMPERATURE.
GENICULATE GANGLION of the (V2)
FACIAL NERVE-an asynaptic ganglian in
the facial comal within the petrons
(V2)
temporal bone. GENERAL SENSATION
TASTE BUDS of The PALATE give FROM PALATAL
qualities to taste (largely an important MUCOSA & LINGUAL GINGIVA (PAIN, TOUCH, TEMP .).
R
bitterness) not otherwise available.
Professional tasters (& wine etc. buffs) make sure the liquid hits these taste buds. FULL
PLATE UPPER DENTURES deprive the wearer of this to contribution to taste.

K.E.W.