ADEX Head and Neck Anatomy 2

Question 1

Which division of the trigeminal nerve passes through the foramen ovale?

Accepted Answer

Mandibular division (V3)

Answer

Ophthalmic division (V1)

Answer

Maxillary division (V2)

Answer

Facial nerve (CN VII)

Question 2

The posterior superior alveolar (PSA) nerve typically innervates which maxillary teeth?

Accepted Answer

The second and third molars, plus the distobuccal and palatal roots of the first molar

Answer

All maxillary premolars and molars

Answer

All three maxillary molars including all roots of the first molar

Answer

Only the maxillary second and third molars

Question 3

The buccinator muscle receives its motor innervation from which cranial nerve?

Accepted Answer

Facial nerve (CN VII)

Answer

Trigeminal nerve (CN V)

Answer

Glossopharyngeal nerve (CN IX)

Answer

Hypoglossal nerve (CN XII)

Question 4

Which muscle forms the muscular floor of the oral cavity, creating a sling between the two sides of the mandible?

Accepted Answer

Mylohyoid

Answer

Geniohyoid

Answer

Digastric

Answer

Stylohyoid

Question 5

The mental nerve, providing sensation to the chin and lower lip, exits the mandible through which structure?

Accepted Answer

Mental foramen

Answer

Mandibular foramen

Answer

Incisive foramen

Answer

Lingual foramen

Question 6

Which muscle is primarily responsible for protruding the tongue and is innervated by the hypoglossal nerve?

Accepted Answer

Genioglossus

Answer

Styloglossus

Answer

Palatoglossus

Answer

Hyoglossus

Question 7

The lingual nerve provides general sensory innervation to which area?

Accepted Answer

Anterior two-thirds of the tongue and floor of the mouth

Answer

Posterior one-third of the tongue only

Answer

The entire tongue and floor of the mouth

Answer

Posterior tongue and pharynx only