MFDS Head and Neck Anatomy

Question 1

Which nerve provides general somatic sensation to the anterior two-thirds of the tongue?

Accepted Answer

Lingual nerve (CN V3)

Answer

The lingual nerve, a branch of the mandibular division of the trigeminal nerve (V3), carries general somatic sensation (touch, pain, temperature) from the anterior two-thirds of the tongue.

Question 2

The parotid duct (Stensen's duct) opens into the oral vestibule opposite which tooth?

Accepted Answer

Upper second molar

Answer

The parotid duct pierces the buccinator muscle and opens at the parotid papilla on the buccal mucosa opposite the upper second molar.

Question 3

Which muscle of mastication is the most powerful elevator of the mandible?

Accepted Answer

Masseter

Answer

The masseter is the most powerful elevator of the mandible; it has superficial and deep heads that together generate the greatest occlusal force among the masticatory muscles.

Question 4

The submandibular duct (Wharton's duct) opens at which structure in the oral cavity?

Accepted Answer

Sublingual caruncle adjacent to the lingual frenulum

Answer

Wharton's duct opens at the sublingual caruncle (papilla), a small elevation on either side of the lingual frenulum on the floor of the mouth.

Question 5

Which foramen on the medial aspect of the mandibular ramus transmits the inferior alveolar nerve and vessels?

Accepted Answer

Mandibular foramen

Answer

The inferior alveolar nerve and artery enter the mandibular canal through the mandibular foramen, located on the medial surface of the ramus, guarded anteriorly by the lingula.

MFDS Part 1 Practice Test

MFDS Part 1 Practice Test

MFDS Head and Neck Anatomy