Where do the pterygoid muscles attach?
Where do the pterygoid muscles attach?
| 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 |
What muscles attach to the medial pterygoid plate?
Its lateral surface forms part of the medial wall of the infratemporal fossa, and gives attachment to the lateral pterygoid muscle; its medial surface forms part of the pterygoid fossa, and gives attachment to the medial pterygoid muscle….
| Lateral pterygoid plate | |
|---|---|
| TA2 | 628 |
| FMA | 54682 |
| Anatomical terms of bone |
What attaches to pterygoid tuberosity?
medial pterygoid muscle
The pterygoid tuberosity is a rough area for the attachment of the medial pterygoid muscle on the internal surface of angle of mandible.
What muscle inserts at the pterygoid fovea?
It is a concave surface on the medial side of the neck of the condyloid process of the mandible. It is located posterior to the mandibular notch and inferior to the mandibular condyle. The pterygoid fovea is the site of insertion for the inferior head of the lateral pterygoid muscle.
How do you test a pterygoid muscle?
Masseter can be easily tested by having the patient clench the jaw and evaluating the volume and firmness of the muscles. The other muscle of mastication supplied by the trigeminal nerve, the pterygoids are examined by having the patient move the jaw from the side against resistance, and protrude the jaw.
How do you release a Pterygoid muscle?
Gently squeeze the muscle between the index finger and the thumb. Start with a gentle pressure, and gradually increase the muscle squeeze as tolerated. Teach the patient to self-squeeze the lateral pterygoid muscle for 1 minute several times per day. Relief of the headache, jaw or facial pain is sometimes immediate.
How do you release a pterygoid muscle?
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.
How do you massage a pterygoid muscle?
Place index finger, on muscle at inside of bottom teeth in mouth. Place opposite thumb under jaw line below ear. Apply pressure to muscle as if to touch finger and thumb. Move along gum line until reach incisors in front.
How do you relax a pterygoid muscle?
Open your jaw and slide your finger in to the inner side of that bone . The muscle is right there. Apply mild to moderate pressure and wait for it to relax. Hold until it relaxes.
What does pterygoid mean?
(Entry 1 of 2) : of, relating to, or lying in the region of the inferior part of the sphenoid bone of the vertebrate skull.
What are the functions of the medial pterygoid muscle?
Medial pterygoid muscle 1 Origin and insertion. Medial pterygoid muscle consists of two heads; superficial and deep, that are separated by the inferior head of lateral pterygoid muscle at their origin. 2 Relations. 3 Innervation. 4 Blood supply. 5 Function.
Where does the deep part of the pterygoid come from?
The deep part forms the bulk of the muscle and arises from the medial surface of the lateral pterygoid plate of sphenoid bone. The smaller, superficial part arises from the maxillary tuberosity and the grooved surface of the pyramidal process of palatine bone.
How is the medial pterygoid related to the parotid gland?
Near its insertion, the outer surface of the medial pterygoid muscle is related to the process of the parotid gland . The inner surface of the muscle is in relation to tensor veli palatini, styloglossus and salpingopharyngeus muscles. The latter two muscles separate the medial pterygoid muscle from the superior pharyngeal constrictor.
How to know if you have medial pterygoid trismus?
This can cause hemorrhage and the development of medial pterygoid trismus hours to days after the procedure. This manifests with inability to completely open the mouth and significant medial pterygoid muscle pain when attempting to open the mouth beyond the restriction.