Head And Neck

Question 1

Describe the course of the facial nerve VII

Answer 1

7th paired CN
2nd pharyngeal arch

Motor -facial expression, posterior belly digastric, stylohoid and stapedius.
Sensory - Small area around chonha of the external ear.
Special sensor: sensation to anterior 2/3 of the tongue via chorda tympani
Parasympathetic: supply’s glands lacrimal, submandibular and sublingual and pharyngeal mucous glands.

Intracranial: pons, throu temporal bone

-geniculate ganglion
-greater petrosal - parasympathetic to the lacrimal gland
- Nerve to stapedius -motor fibers
- Chorda Tympani - special fibers to anterior 2/3 tongue and parasympathetic fibers to submandibular and sublingual glands

Exit located stylomastoid foramen.

Extra cranial

Posterior auricular nerve
Nerve to digastric
Nerve to stylohyoid

5 branch’s
Temporal
Zygomatic

Buccal
Mandibular
Cerevical

Question 2

Cranial nerve 7 facial terminal supply

Answer 2

Question 3

Most common benign and malignant tumors of salivary

Answer 3

Benign
Pleomorphic Adenoma
Warthin Tumor

Malignant
Mucoepidermoid Carcinoma
Adenoid cystic carcinoma
Acinic cell carcinoma

Question 4

Complications of cricothyroidotomy

Answer 4

Subglottal stenosis

Question 5

Submandibular duct and lingual nerve

Answer 5

Question 6

Relationship of the RLN to the parathyroids.

Answer 6

Superior: posterior and lateral
Inferior: anterior and medial.