All Free General Anatomy MCQs with Answers
Every General Anatomy question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
452 questions · page 4 of 23
- A. Facial nerve
- B. Vagus nerve
- C. Mylohyoid nerve
- D. Inferior alveolar nerve
Explanation: The posterior belly of the digastric is derived from the second pharyngeal arch and is therefore supplied by the facial nerve.
Correct answer: Facial nerve- A. Mixed nerve
- B. Sensory nerve
- C. Motor nerve
- D. Parasympathertic nerve
Explanation: The facial nerve is mixed because it carries branchial motor fibres, taste fibres from the anterior two-thirds of the tongue, and…
Correct answer: Mixed nerve- A. III cranial nerve
- B. V cranial nerve
- C. VII cranial nerve
- D. XI cranial nerve
Explanation: Stapedius is a muscle of facial expression derivatives and receives motor innervation from the facial nerve, cranial nerve VII.
Correct answer: VII cranial nerve- A. Mastication; trigeminal ( V cranial )
- B. mastication; facial ( VII cranial )
- C. Facial expression; trigeminal ( V cranial )
- D. Facial expression; facial ( VII cranial)
Explanation: Smiling and frowning are movements of facial expression, produced by muscles supplied by the facial nerve, cranial nerve VII.
Correct answer: Facial expression; facial ( VII cranial)- A. There is paralysis of facial muscles
- B. There is paralysis of muscles of mastication
- C. Paralysis of vocal cords
- D. A and B
Explanation: Damage to the right facial nerve causes weakness or paralysis of the ipsilateral muscles of facial expression, including difficulty…
Correct answer: There is paralysis of facial muscles- A. Digastric
- B. Stylohyoid
- C. Posterior auricular
- D. All of the above
Explanation: The facial nerve gives extracranial branches to the posterior auricular, stylohyoid, and posterior belly of digastric muscles before…
Correct answer: All of the above- A. Preganglionic sympathetic fibres
- B. Preganglionic parasympathetic fibres
- C. Postganglionic sympathetic fibres
- D. Postganglionic parasympathetic fibres
Explanation: Chorda tympani carries preganglionic parasympathetic fibres from the facial nerve to the submandibular ganglion, as well as taste fibres.
Correct answer: Preganglionic parasympathetic fibres- A. Facial nerve
- B. Mandibular nerve
- C. Maxillary nerve
- D. Auriculo temporal nerve
Explanation: Buccinator is a muscle of facial expression, so its motor supply comes from branches of the facial nerve.
Correct answer: Facial nerve- A. Stapedius
- B. Occipitofrontalis
- C. Anterior belly of digastric
- D. Buccinator
Explanation: The anterior belly of digastric is supplied by the mylohyoid nerve, a branch of the inferior alveolar nerve from V3.
Correct answer: Anterior belly of digastric- A. Mylohyoid nerve
- B. Branch of facial nerve
- C. Branch of cervical plexus
- D. Hypoglossal nerve
Explanation: The anterior belly of digastric is supplied by the mylohyoid nerve, which branches from the inferior alveolar nerve of the mandibular…
Correct answer: Mylohyoid nerve- A. Nasal mucosa
- B. Sublingual gland
- C. Ciliary ganglion
- D. B & C
Explanation: The pterygopalatine ganglion carries secretomotor fibres to the nasal mucosa and lacrimal gland, but it is not related to the sublingual…
Correct answer: B & C- A. Vagus
- B. Mandibular
- C. Facial
- D. Maxillary
Explanation: Tensor tympani is a first-arch muscle supplied by the mandibular division of the trigeminal nerve, usually through the nerve to medial…
Correct answer: Mandibular- A. Facial nerve
- B. Mandibular division of the trigeminal nerve
- C. Maxillary division of the trigeminal nerve
- D. Opthalmic branch of the trigeminal
Explanation: The lower molar teeth receive sensory fibres through the inferior alveolar nerve, a branch of the mandibular division of the trigeminal…
Correct answer: Mandibular division of the trigeminal nerve- A. Sphenopalatine ( pterygo palatine)
- B. Otic ganglion
- C. Submandibular
- D. Ciliary
Explanation: Secretomotor fibres to the lacrimal gland relay in the pterygopalatine ganglion before reaching the gland via branches that join the…
Correct answer: Sphenopalatine ( pterygo palatine)- A. VIII cranial nerve
- B. V cranial nerve
- C. VII cranial nerve
- D. II cranial nerve
Explanation: Temporalis is a muscle of mastication supplied by the deep temporal nerves from the mandibular division of cranial nerve V.
Correct answer: V cranial nerve- A. Foramen spinosum
- B. Foramen magnum
- C. Foramen ovale
- D. Foramen lacerum
Explanation: The motor root of the trigeminal nerve joins the mandibular division, and V3 exits the skull through the foramen ovale.
Correct answer: Foramen ovale- A. Mylohyoid , anterior and posterior belly of digastric
- B. Mylohyoid, anterior belly of digastric, and tensor tympani
- C. Mylohyoid, posterior belly of digastric , and tesnor tympani
- D. Mylohyoid, posterior belly of digastric, Stapedius and tensor tympani
Explanation: V3 supplies the mylohyoid, anterior belly of digastric, and tensor tympani, all linked to the first pharyngeal arch.
Correct answer: Mylohyoid, anterior belly of digastric, and tensor tympani- A. Auriculotemporal nerve
- B. Mandibular nerve
- C. Masseteric nerve and vessels
- D. Chorda tympani
Explanation: The mandibular or sigmoid notch is crossed by the masseteric nerve and accompanying vessels as they pass from the infratemporal fossa to…
Correct answer: Masseteric nerve and vessels- A. Stapedius
- B. Buccinator
- C. Tensor veli palatine
- D. Posterior belly of digastric
Explanation: Tensor veli palatini is the only palatal muscle supplied by V3, through the nerve to medial pterygoid.
Correct answer: Tensor veli palatine- A. Zygomaticofacial
- B. Zygmoaticotemporal
- C. Auriculotemporal
- D. Infra trochlear
Explanation: The zygomaticofacial nerve, a branch of the maxillary division of the trigeminal nerve, emerges through the zygomatic bone to supply skin…
Correct answer: Zygomaticofacial