The muscle which opens the mouth is?
Correct Answer: Lateral pterygoid
Description: Ans. C. Lateral pterygoidThere are four classical muscles of mastication.The muscles are:a. The masseterb. The temporalisc. The medial pterygoidd. The lateral pterygoidThe mandible is connected to the temporal bone of the skull via the temporomandibular joint. This is an extremely complex joint which permits movement in all planes. The muscles of mastication originate on the skull and insert into the mandible, thereby allowing for jaw movements during contraction.Movements produced-a. Depression of mandible - by lateral pterygoidb. Elevation of mandible - by temporalis, pterygoid masseterc. Retraction of mandible - by temporalisd. Protraction of mandible - by lateral pterygoid & medial pterygoid
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