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Gravity plays a large part in opening the jaw, but there are muscles that help forcefully open your jaw. The most important of these is the digastric muscle, which connects from the mastoid process of the temporal bone to the hyoid bone, and then from the hyoid bone to the digastric fossa of the mandible.
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∙ 14y ago
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∙ 14y agoThe lateral pterygoid muscles open the mouth, or depress the mandible. And the medial pterygoid, temporalis, and masseter close the mouth, or elevate the jaw, or mandible.
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∙ 11y agoThe masseter muscle.
both masseter and temporalis :)100%
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∙ 13y agoThe largest and most obvious muscle is the Masseter muscle. Some other smaller muscles include the Zygomaticus Major and the Buccinator.
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∙ 14y agoa muscle i dont know of
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∙ 12y agoThe internal pterygoid closes the jaw
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∙ 14y agoMasseter
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lateral pterygoid
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Epicrinium
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The masseter is the strongest muscle for its size in your body at least as far as force exerted by muscles you can control go What does it do?
Opens and closes your lower jaw
What is the muscle closes the jaw?
The masseter muscle. both masseter and temporalis :)100%
What opens and closes bivalve shells?
The adductor Muscle
A body joint that opens and closes?
Muscle Joint
Do horses chew sideways?
Horses chew by moving their lower jaw in an oval pattern because their lower jaw is narrower than the upper jaw. As the jaw closes, it moves from one side to the other. As it opens it returns to the original position.
The acts synergistically with the masseter to elevate the mandible?
The masseter IS the functional muscle which closes the mandible (jaw).
Number of origins of the temporalis muscle?
THE ORIGIN OF THE TEMPORALIS MUSCLE IS TEMPORAL FOSSA Insertion: Coronid process of the mandible Function/Action: Closes Jaw
What originates on the zygomatic arch and inserts on the angle of the mandible?
The masseter is the main muscle that shuts or closes the jaw.
What is the muscle that opens and closes the entrance from the stomach to the duodenum?
The pyloric sphincter muscle regulates the flow of chyme from the stomach to the duodenum just a few mL at a time.
What is the synergist muscle for jaw closure?
The muscle that aids the jaw in closing is the temporalis muscle. The masseter is the muscle that primarily moves the jaw.
Flap that opens and closes the trachea?
The epiglottis is a flap of cartilage that opens and closes the trachea. It is located at the root of the tongue.
What is the action of the temporalis muscle?
closes jaw, elevates and retracts the mandible
