VII. Facial

Question 1

Foramen

Answer 1

Internal acoustic meatus, stylomastoid foramen

Question 2

Fiber Type

Answer 2

GSA
SVA
SVE - branchiomotor
GVE - parasympathetic

Question 3

Function

Answer 3

GSA: sensation

• skin of auricle
• skin of small area behind ear

SVA: taste
- taste ant. 2/3 of the tongue

SVE: Facial expression

• muscles of facial expression
• post. belly of digastric
• stylohyoid

GVE: Secretomotor

• lacrimal gland
• submandibular gland
• sublingual gland
• mucous membranes of nasopharynx, hard and soft palate

Question 4

Innervated Structures

Answer 4

GSA - external ear, soft palate, auditory tube

SVA - Anterior 2/3rd tongue

SVE - Efferent - Ms. Facial expression, stylohyoid, postdigastric, stapedius

GVE - lacrimal gland, glands of nasopharynx and sinuses (pterygopalatine ganglion)