NBDHE Head and Neck Anatomy 2

Question 1

The parotid gland's secretory duct (Stensen's duct) opens into the oral cavity at which landmark?

Accepted Answer

The parotid papilla opposite the maxillary second molar

Answer

The sublingual caruncle on the floor of the mouth

Answer

The posterior wall of the pharynx

Answer

Directly behind the upper first molar

Question 2

Which cranial nerve provides sensory innervation to the anterior two-thirds of the tongue?

Accepted Answer

Lingual nerve (branch of V3 — trigeminal)

Answer

Chorda tympani (branch of VII — facial)

Answer

Glossopharyngeal nerve (CN IX)

Answer

Hypoglossal nerve (CN XII)

Question 3

The mental foramen in adults is typically located:

Accepted Answer

Between the apices of the mandibular first and second premolars, on the buccal aspect

Answer

On the lingual surface of the mandible near the midline

Answer

At the inferior border of the mandible near the gonial angle

Answer

Immediately inferior to the incisive foramen

Question 4

Which muscle depresses the mandible (opens the mouth) and is innervated by the mylohyoid nerve?

Accepted Answer

Mylohyoid muscle

Answer

Medial pterygoid

Answer

Masseter

Answer

Temporalis

Question 5

The infraorbital nerve is a branch of which division of the trigeminal nerve, and what structures does it innervate?

Accepted Answer

Maxillary division (V2) — innervates maxillary anterior teeth, buccal gingiva, upper lip, and cheek skin

Answer

Ophthalmic division (V1) — innervates the orbit and forehead

Answer

Mandibular division (V3) — innervates the lower lip and chin

Answer

Facial nerve (CN VII) — innervates facial expression muscles

Question 6

The temporomandibular joint (TMJ) is classified as which type of joint?

Accepted Answer

Ginglymoarthrodial joint (combination hinge and gliding)

Answer

Simple hinge (ginglymoid) joint only

Answer

Ball-and-socket (spheroid) joint

Answer

Pivot (trochoid) joint