What Innervates medial pterygoid?
Nerve supply The medial pterygoid muscle is supplied by the medial pterygoid nerve, a branch of the mandibular nerve, itself a branch of the trigeminal nerve (V). This also supplies the tensor tympani muscle and the tensor veli palatini muscle.
What is the function of medial pterygoid muscle?
The function of medial pterygoid, while contracting bilaterally, it produces elevation and protrusion of the mandible, while unilaterally contracted, it produces contralateral excursion (Neumann, 2010; Okeson, 2013). It pulls the ramus of the mandible medially and shifting the mandible toward to the contralateral side.
What is the action of the Pterygoids?
| Lateral pterygoid muscle | |
|---|---|
| Artery | pterygoid branches of maxillary artery |
| Nerve | lateral pterygoid nerve from mandibular nerve |
| Actions | depresses and protrudes mandible, side to side movement of mandible |
| Identifiers |
Which nerve Innervates masticatory muscles?
Unlike the muscles of facial expression that are innervated by the facial nerve (CN VII), the muscles of mastication are innervated by motor branches of the mandibular division of the trigeminal nerve (CNV3), while the main arterial supply is derived from branches of the maxillary artery.
What is TMJ innervated by?
The muscles that act on the TMJ are innervated by the mandibular nerve (CN V), the facial nerve (CN VII), C 1, C 2 and C 3.
What Innervates the lateral pterygoid muscle?
The lateral pterygoid muscle receives innervation from the mandibular branch of cranial nerve V (trigeminal nerve). The main trunk of the mandibular nerve divides into the anterior and the posterior division. The anterior division gives off three motor branches.
What is the type and subtype of temporomandibular joint?
Each temporomandibular joint is classed as a “ginglymoarthrodial” joint since it is both a ginglymus (hinging joint) and an arthrodial (sliding) joint. The condyle of the mandible articulates with the temporal bone in the mandibular fossa.
Which cranial nerve innervates the sternocleidomastoid and trapezius?
the XI nerve
The muscles innervated directly by the XI nerve are the trapezius and the sternocleidomastoid, in addition to the laryngeal musculature (in collaboration with the vagus nerve), such as the palatal, pharyngeal, laryngeal muscles.
Which nerve Innervates the maxillary anterior teeth?
Anterior superior alveolar nerve
| Anterior superior alveolar nerve | |
|---|---|
| Alveolar branches of superior maxillary nerve and sphenopalatine ganglion. | |
| Details | |
| From | Infraorbital nerve |
| Innervates | dental alveolus |
Which is nerve innervates the medial pterygoid muscle?
Nerve to medial pterygoid labeled at bottom. [edit on Wikidata] The medial pterygoid nerve (or internal pterygoid nerve) is a branch of the mandibular nerve that innervates the medial pterygoid muscle, tensor veli palatini and tensor tympani.
Where is the medial pterygoid located in the body?
The medial pterygoid (also medial pterygoid muscle, latin: musculus pterygoideus medialis) is one of the masticatory muscles. The medial pterygoid is located in the infratemporal fossa and is involved in several movements of the mandible.
Where is the venous plexus of the pterygoid?
The pterygoid venous plexus is a venous network that surrounds the pterygoid segment of the maxillary artery. It is located within the infratemporal fossa, lying partly between temporal and lateral pterygoid muscle, and partly between the lateral and medial pterygoid muscles.
Can a nerve block cause a medial pterygoid injury?
The medial pterygoid muscle can sometimes be injured during inferior alveolar nerve block due to it being in close proximity to the nerve. The injury occurs if the anesthetic needle is placed too medially and accidentally injects into the muscle instead of the inferior alveolar nerve.