medial pterygoid muscle action

rentas March 06, 2022 action , medial , pterygoid Comment

Muscle musl a bundle of long slender cells muscle fibers that have the power to contract and hence to produce movement. The right and left medial pterygoid plates form the posterior lateral walls of the nasal cavity.

Medial Pterygoid Muscle Attachments Actions Innervation

That muscle forces are sufficient to approximate joint surfaces and ligaments do not influence this action.

. Temporalis muscle Musculus temporalis The temporalis muscle is a thin fan-shaped muscle situated within the temporal fossa of the skullAlong with the medial pterygoid lateral pterygoid and masseter muscles it belongs to the group masticatory muscles. Contraction of the medial pterygoid is similar to the masseter muscle causing elevation and protrusion of the mandible. 1 the roof of the fossa is thin.

The medial pterygoid originates from two heads the medial surface of the lateral pterygoid plate and the tuberosity of the maxilla and inserts along the medial surface of the mandibular ramus. They also protect the contents of the abdomen against injury and help support the body. Medial pterygoid muscle is located in the infratemporal fossa lying deep to masseter and temporalis muscles and medial to lateral pterygoid muscle.

Muscles are responsible for locomotion and play an important part in performing vital body functions. These are the medial pterygoid plate and lateral pterygoid plate pterygoid wing-shaped. The somewhat larger lateral pterygoid plates serve as attachment sites for chewing muscles that fill the infratemporal space and act on the mandible.

See appendix 3-4 and see color plates. It becomes apparent that the TMJ articulation has some unique characteristics The following points agree with conclusions presented by Sar- nat to which the joint evidences a pressure- bearing adaption. The outer surface of the muscle lies against the inner surface of mandible from which it is separated by the lateral pterygoid muscle sphenomandibular ligament maxillary artery mandibular nerve and its.

The temporalis muscle runs superficially from the temporal bone to the coronoid process of.

Medial And Lateral Pterygoid Muscle Anatomy And Function Kenhub