What is masseteric nerve?
The masseteric nerve is the most posterior branch off the anterior trunk. It passes laterally between the lateral pterygoid muscle and infratemporal surface of the skull, anterior to the temporomandibular joint (TMJ) and posterior to the tendon of the temporalis (Piagkou et al., 2011).
What nerve goes to masseter?
The masseter is primarily responsible for the elevation of the mandible and some protraction of the mandible. It receives its motor innervation from the mandibular division of the trigeminal nerve. The blood supply is primarily from the masseteric artery, a branch of the internal maxillary artery.
Which muscles does the Masseteric artery supply?
It anastomoses with the masseteric branches of the external maxillary artery and with the transverse facial artery….
| Masseteric artery | |
|---|---|
| The arteries of the face and scalp. (Masseteric artery not labeled, but masseter muscle visible near center.) | |
| Details | |
| Source | maxillary artery |
| Supplies | Masseter muscle |
What are the 3 parts of the maxillary artery?
The maxillary artery is divided into three portions by its relation to the lateral pterygoid muscle:
- first (mandibular) part: posterior to lateral pterygoid muscle (five branches)
- second (pterygoid or muscular) part: within lateral pterygoid muscle (five branches)
What does the mandibular nerve do?
The mandibular nerve supplies both motor and sensory information, which means it’s linked to movement and senses. One of its most essential functions is controlling the movements of the muscles that allow you to chew. These include the masseter, the lateral and medial pterygoids, and the temporalis muscle.
Is masseteric nerve a cranial nerve?
The masseteric nerve is a nerve of the face. It is a branch of the mandibular nerve (V3)….
| Masseteric nerve | |
|---|---|
| Mandibular division of the trigeminal nerve. (Masseteric visible near center.) | |
| Details | |
| From | mandibular nerve |
| Innervates | masseter muscle, temporomandibular joint |
How do you identify the masseteric nerve?
In all dissections, the masseteric nerve was identified through the newly described “subzygomatic triangle.” This triangle is formed by the zygomatic arch superiorly, the temporomandibular joint posteriorly, and the frontal branch of the facial nerve inferiorly and anteriorly.
What nerve stimulates the masseter and temporalis muscles to elevate the mandible during mastication and swallowing?
Nerve and blood supply It is innervated by the mandibular division of the Trigeminal Nerve.
What are the branches of the maxillary nerve?
Branches
- Zygomatic nerve (zygomaticotemporal nerve, zygomaticofacial nerve), through the Inferior orbital fissure.
- Nasopalatine nerve, through the sphenopalatine foramen.
- Posterior superior alveolar nerve.
- Greater and lesser palatine nerves.
- Pharyngeal nerve.
Where does the masseteric artery enter the body?
The masseteric artery is a small branch that passes through the mandibular notch of the mandible into the deep surface of the masseter muscle. The masseteric artery anastomoses with branches of the facial artery (formerly the external maxillary artery) and the transverse facial artery. [2] Nerves The masseteric nerve innervates the masseter muscle.
What are the four branches of the masseter muscle?
The pterygoid portion (muscular portion, the second portion) has four main branches including the masseteric artery, pterygoid branches, deep temporal arteries, and the buccal artery. The masseteric artery is a small branch that passes through the mandibular notch of the mandible into the deep surface of the masseter muscle.
What kind of nerve innervates the masseter muscle?
The masseteric nerve innervates the masseter muscle. The masseteric nerve is a branch of the mandibular division (V3) of the trigeminal nerve (cranial nerve V). The trigeminal nerve carries both sensory and motor fibers.
Where is the masseteric nerve located in the face?
The masseteric nerve originates from infratemporal fossa from foramen ovale, it enters the masseter muscle by passing through the sigmoid notch of the mandible and is located in the plane between the middle and deep lobes of the masseter. It is in close proximity to the zygomatic branches of the facial nerve,…