All Free General Anatomy MCQs with Answers

• 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.

• A. Digastric triangle
• B. Carotid triangle
• C. Muscular triangle
• D. Deep to hyoglossus muscle

Explanation: The submandibular gland occupies the submandibular, or digastric, triangle beneath the body of the mandible.

• A. Deviation of tongue to right
• B. Deviation of tongue to left
• C. Deviation of soft palate to right
• D. deviation of soft palate to left

Explanation: The genioglossus protrudes the tongue, and unilateral paralysis causes the intact muscle to push the tongue toward the paralysed side.

• A. Lingual nerve
• B. Hypoglossal nerve
• C. Submandibular Ganglion
• D. Glossopharyngeal nerve

Explanation: The lingual nerve, hypoglossal nerve and submandibular ganglion pass superficial to hyoglossus, whereas the glossopharyngeal nerve is…

• A. Verticalis
• B. Superior longitudinal
• C. Inferior longitudinal
• D. Transverse

Explanation: The verticalis muscle runs vertically within the tongue from its dorsal surface toward the ventral surface, shortening and flattening the…

• A. Genioglossi and hyoglossi
• B. Genioglossi and palatoglossal
• C. Hyoglossi and styloglossi
• D. Styloglossi and palatoglossal

Explanation: Genioglossus and hyoglossus help depress the tongue, while styloglossus and palatoglossus mainly elevate or retract it.

• A. Glossopharyngeal nerve
• B. Lingual nerve
• C. Chorda tympani
• D. Hypoglossal

Explanation: The hypoglossal nerve supplies the intrinsic tongue muscles and all extrinsic muscles except palatoglossus, which is supplied by the vagus…

• A. Hypoglossal nerve
• B. Lingual artery
• C. Stylohyoid muscle
• D. Geniohyoid muscle

Explanation: The hypoglossal nerve crosses the superficial surface of hyoglossus, whereas the lingual artery and several deeper muscular structures lie…

• A. Left hypoglossal
• B. Glossopharyngeal
• C. Right hypoglossal
• D. Facial nerve

Explanation: A hypoglossal lesion weakens the right genioglossus, so the functioning left genioglossus pushes the protruded tongue toward the right.

• A. Palatoglossus
• B. Genioglossus
• C. Hyoglossus
• D. Styloglossus

Explanation: Palatoglossus is the only tongue muscle not supplied by the hypoglossal nerve; it receives motor fibers through the vagus nerve via the…