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What are the attachments of the medial pterygoid muscle?

What are the attachments of the medial pterygoid muscle?

Medial pterygoid muscle

Origin Superficial part: Tuberosity of maxilla, Pyramidal process of palatine bone; Deep part: Medial surface of lateral pterygoid plate of sphenoid bone
Insertion Medial surface of ramus and angle of mandible

What is the place of attachment of the lateral pterygoid muscle?

Lateral pterygoid muscle
Origin Superior head: infratemporal surface of sphenoid bone. Inferior head: lateral pterygoid plate
Insertion Superior head: anterior side of the condyle. Inferior head: pterygoid fovea
Artery Pterygoid branches of maxillary artery
Nerve Lateral pterygoid nerve from the mandibular nerve

Which are functions of the medial and lateral pterygoid muscles?

The medial pterygoid muscle attaches to the angle of the mandible and to the lateral pterygoid plate to form a sling with the masseter muscle that suspends the mandible (Figure 6-19). The primary action is to elevate the mandible and laterally deviate it to the opposite side.

What muscles attach to the mandible?

The mandible serves as the attachment point for the various muscles, including the strong muscles of mastication.

  • Mandibular body:
  • Mandibular rami – masseter, temporalis, medial pterygoid and lateral pterygoid.

What is the function of pterygoid muscle?

The Lateral pterygoid muscle is active during mastication and during mandibular movements such as protrusion (forward movement of the mandible), abduction (depression of the mandible), mediotrusion (movement of the mandibular condyle towards the midline), and particularly during speaking, singing, and clenching.

What happens when all four pterygoid muscles act together?

The primary function of the pterygoid muscles is to produce movements of the mandible at the temporomandibular joint….Pterygoid muscles.

Definition and function Muscles of mastication that produce movements of the jaw.
Blood supply Pterygoid branches of the maxillary artery

What are the functions of the two head of the lateral pterygoid muscle?

Lateral pterygoid is a two-headed, fan-shaped muscle located in the infratemporal fossa of the skull. It is one of the four masticatory muscles, along with the medial pterygoid, temporalis and masseter muscles. All these muscles act upon the temporomandibular joint (TMJ) to enable chewing (mastication) and biting.

What is the function of the lateral pterygoid?

What is the function of lateral pterygoid muscles?

What muscle attaches to Coronoid process?

temporalis muscle
The temporalis muscle is a large fan-shaped muscle that originates on the temporal bone of the skull and inserts on the coronoid process of the mandible.

What is the function of the pterygoid?