ADEX Head and Neck Anatomy 1

Question 1

Which cranial nerve provides primary sensory innervation to the teeth and periodontium?

Accepted Answer

CN V (Trigeminal)

Answer

The trigeminal nerve (CN V) provides primary sensory innervation to the teeth, periodontium, and oral mucosa through its maxillary and mandibular divisions.

Question 2

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

Accepted Answer

Maxillary second molar

Answer

Stensen's duct opens into the oral vestibule on a small papilla opposite the maxillary second molar.

Question 3

Which muscle of mastication is the most superficial and is easily palpated externally over the ramus of the mandible?

Accepted Answer

Masseter

Answer

The masseter is the most superficial muscle of mastication and a powerful jaw closer, attaching from the zygomatic arch to the lateral ramus of the mandible.

Question 4

The inferior alveolar nerve is a branch of which division of the trigeminal nerve?

Accepted Answer

Mandibular (V3)

Answer

The inferior alveolar nerve is a branch of the mandibular division (V3) of the trigeminal nerve, providing sensation to the mandibular teeth and chin.

Question 5

Which lymph node group is the primary drainage site for the tip of the tongue?

Accepted Answer

Submental nodes

Answer

The submental lymph nodes drain the tip of the tongue, lower lip, and chin area, and are located between the two anterior bellies of the digastric muscle.

ADEX - Dental Hygiene Exam Practice Test

ADEX - Dental Hygiene Exam Practice Test

ADEX Head and Neck Anatomy 1