Lateral Pterygoid muscle is attached to-
Correct Answer: Articular disc of temporomandibular joint
Description: Ans. is 'a' i.e., Articular disc of temporomandibular joint Muscles of masticationMusclesOriginInsertionNerve supplyActionSpecial remarksMasseterLower border of zygomatic arch & its deep surface.Lateral surface of ramus and angle of mandible.Anterior division of mandibularnerve.Elevates the mandible, clenches teeth. Protrusion.Effector of the jaw jerk reflex. It is hypertrophied in bruxism.TemporalisFloor of temporal fossa and temporal fascia.Coronoid process and anterior border of ramus of mandible.Anterior division of mandibularnerve.Elevates the mandible, Retracts the mandible.Side to side movement.Fan shaped muscle.Lateral pterygoidUpper head: Infra temporal surface & crest of greater wing of sphenoid. Lower head:Lateral surface of lateralpterygoid plate.Pterygoid fovea on the neck of mandible, articular disc and capsule of temporoman- dibular joint.Anterior division of mandibularnerve.Depresses the mandible.Protrusion and side to side movement.Most important muscle for opening of mouth along with suprahyoid muscles.Medial pterygoidSuperficial head:Tuberosity of maxilla.Deep head: Medial surface of lateral pterygoid plate & pyramidal process of palatine bone.Medial surface of angle mandible & adjoining ramus.Branch from trunk of mandibularnerve.Elevates the mandible. Protrusion & side to side movement.Nerve to medial pterygoid suppliestensor palati & tensor tympani through otic ganglion.
Category:
Anatomy
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now