Free Head and Neck MCQs with Answers

• A. Common Carotid
• B. Superior thyroid
• C. Middle thyroid
• D. Inferior thyroid

Explanation: The inferior thyroid artery, a branch of the thyrocervical trunk, is the principal arterial supply to the parathyroid glands.

• A. V
• B. IX
• C. VII
• D. XII

Explanation: The facial nerve supplies the submandibular gland with secretomotor fibres carried in the chorda tympani and then the lingual nerve to the…

• A. Upper border of thyroid cartilage
• B. Lower borer of cricoid
• C. Upper border of cricoid
• D. Hyoid

Explanation: The common carotid artery usually bifurcates at the upper border of the thyroid cartilage, approximately at the C3-C4 level.

• A. ECA
• B. Facial nerve
• C. Auriculo temporal nerve
• D. Buccal branch of mandibular nerve

Explanation: The external carotid artery, facial nerve, and auriculotemporal nerve are related to or pass through the parotid gland.

• A. Genioglossus
• B. Mylohyoid
• C. Sternohyoid
• D. Digastric

Explanation: The mylohyoid muscle forms the floor of the mouth and separates the submandibular gland into a large superficial part below it and a…

• A. Otic ganglion
• B. Gasserian ganglion
• C. Geniculate ganglion
• D. Submandibular ganglion

Explanation: Preganglionic parasympathetic fibres from the glossopharyngeal nerve relay in the otic ganglion, after which postganglionic fibres reach…

• A. At the hamular notch
• B. In proximity to the incisive papillae
• C. On the buccal mocosa near the maxillary second molar
• D. Slightly posterior to the mandibular central incisors

Explanation: The parotid duct crosses the masseter, turns medially, pierces the buccinator, and opens into the oral vestibule opposite the maxillary…

• A. Greater Petrosal nerve
• B. Auriculotemporal nerve
• C. Maxillary nerve
• D. Chorda Tympani

Explanation: Postganglionic secretomotor fibres from the otic ganglion hitchhike on the auriculotemporal nerve to reach the parotid gland.

• A. Deep
• B. Superficial
• C. In the substance of parotid
• D. None

Explanation: The facial nerve enters the parotid and divides within its substance into terminal branches, forming the parotid plexus.

• A. Anterior border of masseter
• B. At the opening just opposite to lower second molar
• C. Pierced to the buccinator
• D. A the anterior surface of parotid gland

Explanation: The parotid duct can be palpated along the anterior border of the masseter, on the gland's anterior surface, and near its opening after…

• A. Superficial temporal artery
• B. Posterior auricular artery
• C. External carotid artery
• D. Internal carotid artery

Explanation: The external carotid artery traverses the parotid gland and divides within it into the superficial temporal and maxillary arteries.

• A. Lingual nerve
• B. Lingual artery
• C. Internal carotid artery
• D. External carotid artery

Explanation: If an inferior alveolar nerve-block needle passes too far posteriorly into the parotid, it may enter structures that traverse the gland…

• A. Downward, Medially, Backwards
• B. Downward, laterally, Backwards '(DLB)
• C. Downward, laterally forward
• D. Downward, medially forward

Explanation: The nasolacrimal duct descends from the lacrimal sac in a direction that is downward, backward, and laterally.

• A. External jugular vein
• B. Anterior jugular vein
• C. Internal jugular vein
• D. Brachiocephalic

Explanation: The middle thyroid vein is a short vessel that drains directly into the internal jugular vein.

• A. 1st part of subclavian artery
• B. Thyrocervical trunk of 1st part of subclavian artery
• C. 3rd part of subclavian artery
• D. Internal carotid artery

Explanation: The inferior thyroid artery arises from the thyrocervical trunk, which comes from the first part of the subclavian artery.

• A. 2nd to 4th
• B. 3rd to 5th
• C. 5th and 6th
• D. 4th only

Explanation: The thyroid isthmus usually crosses the anterior surfaces of the second, third and fourth tracheal rings.

• A. Hyoglossus and genioglossus
• B. Hyoglossus and styloglossus
• C. Geniglossus and mandible
• D. Geniohyoid and genioglossus

Explanation: The sublingual gland lies in the floor of the mouth between the mandible laterally and the genioglossus medially, above the mylohyoid.

• A. Hypoglossal nerve
• B. Motor nerve of the muscles of mastication
• C. External carotid artery, auriculotemporal nerve, facial nerve
• D. Lesser occipital nerve and spinal accessory nerve

Explanation: Structures within or closely related to the parotid gland include the facial nerve, external carotid artery and auriculotemporal nerve…

• A. Buccinator muscle
• B. Superior constrictor
• C. Masseter
• D. Zygomaticus major

Explanation: After crossing the masseter, the parotid duct turns medially and pierces the buccinator opposite the upper second molar tooth.

• A. Lingual nerve
• B. Spinal accessory nerve
• C. Mandibular branch of facial nerve
• D. Hypoglossal nerve

Explanation: Submandibular gland surgery may injure the lingual nerve, hypoglossal nerve and marginal mandibular branch of the facial nerve.