All Free General Anatomy MCQs with Answers

• A. Digastric
• B. Lateral pterygoid
• C. Masseter
• D. Temporalis

Explanation: The digastric has two muscle bellies with different nerve supplies: the anterior belly is supplied by the mylohyoid nerve, while the…

• A. Sphenomandibular
• B. Stylomandibular
• C. Pterygomandibular
• D. All of the above

Explanation: The stylomandibular ligament becomes taut during certain mandibular movements and helps limit excessive protrusion and opening.

• A. Mobile
• B. Supple
• C. Immobile
• D. None of the above

Explanation: During wide opening of the mouth, the modiolus at the angle of the mouth is fixed by the coordinated pull of surrounding facial muscles.

• A. Tip of the tongue
• B. Base of the tongue
• C. Lateral part of the tongue
• D. Hyoid bone

Explanation: Hyoglossus arises from the hyoid bone and ascends to insert into the side of the tongue, extending toward its posterior part.

• A. Auriculotemporal nerve
• B. Facial nerve
• C. Massetric nerve
• D. Auricular nerve

Explanation: The auriculotemporal nerve, a branch of V3, provides the main sensory supply to the TMJ capsule.

• A. Levator palati
• B. Palat glossus
• C. Tensor palati
• D. Musculus uvulae

Explanation: Tensor veli palatini is the only soft-palate muscle supplied by the mandibular division of the trigeminal nerve through the nerve to…

• A. Platysma
• B. Sternohyoid
• C. Sternocleidomastoid
• D. Omohyoid

Explanation: Wry neck, or torticollis, results from shortening or spasm of the sternocleidomastoid, producing lateral flexion and rotation of the neck.

• A. Body of hyoid bone
• B. Mandible
• C. Pterygomandibular raphae
• D. Cricoid cartilage

Explanation: The middle pharyngeal constrictor arises from the greater and lesser horns of the hyoid bone, including attachment near its body.

• A. Condyles move upwards
• B. Articular disc moves posteriorly
• C. Lateral pterygoids contract
• D. Condyles moves around vertical axis

Explanation: Wide opening of the jaw requires contraction of the lateral pterygoid, which pulls the mandibular condyle and articular disc forwards onto…

• A. Levator palpebrae superioris muscle
• B. Lateral rectus
• C. inferior oblique
• D. Superior oblique

Explanation: The lacrimal gland occupies the lacrimal fossa in the superolateral orbit, and its orbital and palpebral parts are separated by the…

• A. Condyle
• B. Stylo mandibular ligament
• C. Medial pterygoid muscle
• D. Lateral pterygoid muscle

Explanation: The lateral pterygoid pulls the articular disc and mandibular condyle forwards during protrusion and opening of the mouth.

• A. Lateral rectus, superior oblique and the inferior oblique
• B. Medial rectus superior rectus and the inferior rectus
• C. superior oblique and the superior rectus
• D. Inferior oblique and the inferior rectus

Explanation: Abduction means turning the cornea laterally, which is performed directly by lateral rectus and assisted by both oblique muscles.

• A. Digastrics
• B. Subclavian
• C. Carotid
• D. Submental

Explanation: The anterior triangle contains the digastric, carotid, submental and muscular subdivisions.

• A. Palatopharyngeus
• B. Stylopharyngeus
• C. Palatoglossus
• D. Mucsculus uvulae

Explanation: Stylopharyngeus is the exception because it is supplied by the glossopharyngeal nerve, whereas the palatal and pharyngeal muscles listed…

• A. Mastoid process
• B. Mandible
• C. Hyoid bone
• D. Thyroid cartilage

Explanation: The intermediate tendon of digastric is held against the hyoid by a fibrous sling.

• A. lateral rectus
• B. Superior oblique
• C. Superior rectus
• D. Inferior rectus
• E. A & B

Explanation: The oculomotor nerve supplies superior, medial and inferior recti, inferior oblique and levator palpebrae superioris.

• A. Mylohyoid
• B. Cricothyroid
• C. Stylohyoid
• D. Sternothyroid

Explanation: Ansa cervicalis supplies most infrahyoid muscles, including sternothyroid, sternohyoid and omohyoid.

• A. Masseter anteiorly and occulomotor
• B. Masseter anteriorly and middle pterygoid
• C. Buccinator anterior and superior constrictor
• D. Buccinator anteriorly and middle constrictor

Explanation: The pterygomandibular raphe extends between the buccinator anteriorly and the superior pharyngeal constrictor posteriorly.

• A. Masseter
• B. Buccinator
• C. Middle temporal
• D. Medial pterygoid

Explanation: The masseter arises partly from the zygomatic process of the maxilla and the zygomatic arch, then inserts on the lateral ramus and angle…

• A. side of the skull
• B. Zygmoatic process
• C. Ramus of the mandible
• D. Pterygopalatine fossa

Explanation: Temporalis originates broadly from the temporal fossa and the deep temporal fascia, essentially from the side of the skull.