Facial Nerve Flashcards
GSA – General—— ——— GSE – General—— ——— GVA – General——- ——— GVE – General—— ———-
Somatic Afferent
Touch, temperature, and pain from non-visceral structures
Somatic Efferent; Motor to skeletal muscle
Visceral Afferent; Touch (distention), temperature, and pain from the viscera
Visceral Efferent; Motor to viscera, smooth muscle, and glands
SSA – Special——- ———- SSE - Special——- ———— SVA – Special——- ———— SVE – Special——- ———
Somatic Afferent; Vision, hearing, and balance
Somatic Efferent; Doesn’t exist
Visceral Afferent; Taste and olfaction
Visceral Efferent; Motor to muscles derived from the branchial arches
List the branches of facial nerve
FACIAL BRANCHES
*Greater Superficial Petrosal Nerve (GSPN)
- Stapedial Nerve
- Chorda Tympani Nerve
- Posterior Auricular Nerve
- Facial Nerve (terminal branch)
FACIAL BRANCHES *——- (GSPN) ———- *Stapedial Nerve ——- *Chorda Tympani Nerve ——— *Posterior Auricular Nerve ——- *Facial Nerve (terminal branch) ——
Greater Superficial Petrosal Nerve;GVA, GVE, SVA
SVE
GVE, SVA
SVE, GSA
SVE
Functional components of the Facial Nerve (CN VII)
- SVE (Special Visceral Efferent) ————
- GVA (General Visceral Afferent) ———-
- SVA (Special Visceral Afferent) ———-
- GVE (General Visceral Efferent) ———-
- GSA (General Somatic Afferent) ————
Motor to striated muscles derived from the 2nd branchial arch.
Sensory from visceral touch, temperature, and pain
Taste
Autonomic innervation to mucosal, lacrimal, and salivary glands.
Sensory from somatic touch, temperature, and pain.
SVE Component of the Facial Nerve
(1) Stapedius muscle ——-
(2) Posterior auricular muscle ——-
(3) Stylohyoid muscle ———
(4) Posterior belly of digastric ——- hyoid bone,——- mandible
(5) Muscles of facial expression
dampens movement of the ossicles (inserts on stapes of middle ear) to protect the inner ear from damage from loud noises
posterior movement of pinna
elevates hyoid bone
elevates; depresses
(5) Muscles of facial expression
Temporal branch (with—— branch) innervates____–to——
Zygomatic branch (with—— branch) innervates_____–for ——
Buccal branch innervates____–to ——-
Mandibular branch innervates_____–for ——-
Cervical branch innervates____–___ mandible, tenses——
zygomatic; orbicularis oculi; close ipsilateral eyelids
buccal; ipsilateral zygomaticus major; smiling
buccinator; tenses cheek
ipsilateral depressor angularis oris; frowning
platysma; lowers; skin of anterior neck
Platysma is also known as ———muscle
Shaving
GVA Component of the Facial Nerve
- Light touch, temperature, and pain sensation from the——- via the —-nerve
- Goes from—— to ——to——- then through—— and finally through the—— fossa
soft palate; greater superficial petrosal
internal acoustic meatus
facial canal
hiatus of canal of GSPN
pterygoid canal
lesser palatine
SVA Component of the Facial Nerve
Taste from the——- via the——-
Taste from the—— of the tongue via the——-
hard and soft palate; greater superficial petrosal nerve (GSPN).
anterior 2/3; chorda tympani nerve.
GSA Component of the Facial Nerve
- Touch, temperature, and pain sensation from—- of the——- via the—— nerve.
- like when you are——-
part; external acoustic meatus; posterior auricular
cleaning your ears with a cotton swab
GVE Component of the
Facial Nerve
(1) transmits preganglionic fibers to the—— ganglion via the—-nerve. From the ganglion postganglionic fibers cause———
(2) transmits preganglionic fibers to the—— ganglion via the ——-nerve. From the ganglion postganglionic fibers innervate the——-, causing——-
pterygopalatine; GSPN; ipsilateral lacrimation and mucus secretions of the nasal and oral cavities.
submandibular; chorda tympani ; submandibular and sublingual glands; salivation.
The facial canal (aka —-Canal) is a—–shaped canal running through the—— bone from the—— to the——. It is approximately—— long, which makes it the ——-of a nerve.
Fallopian Z temporal internal acoustic meatus stylomastoid foramen 3 centimeters longest human osseous canal
The facial nerve exits the—— cranial fossa at the——
Within the——- the facial nerve enters the——
posterior; internal acoustic meatus.
internal acoustic meatus; facial canal.
The first branch of the facial nerve, the——- branches from the——- within the—- of the facial canal and enters the—— cranial fossa by way of the———
greater superficial petrosal nerve (GSPN)
geniculate ganglion
genu
middle
hiatus of the canal for the GSPN.
