Anatomy MCQ 0013

All of the following muscles are grouped together as ‘muscles of mastication’ except –

1. Buccinator.
2. Masseter.
3. Temporalis.
4. Pterygoids.

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The Correct option is A

Explanation with High Yield Facts :

Muscles of Mastication

Muscle	Origin	Insertion	Action
Temporalis	Temporal bone Parietal bone	Coronoid process	Elevates jaw Retracts jaw
Masseter	Zygomatic arch	Mandibular angle	Elevates jaw
Lateral Pterygoid (Superior Head)	Sphenoid bone	Temporomandibular Disk	Draws articular disk forward
Lateral Pterygoid (Inferior Head)	Lateral Side of Lateral Pterygoid Plate	Mandibular neck	(bilaterally) Protracts jaw (unilaterally) Abducts jaw (grinding)
Medial Pterygoid	Medial Side of Lateral Pterygoid Plate	Mandibular angle	Elevates jaw

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