The pterygoid is a paired bone forming part of the palate of many vertebrates, behind the palatine bones. In humans it becomes the pterygoid processes of the sphenoid bone. This human musculoskeletal system article is a stub. You can help Wikipedia by expanding it.Then, what is a Pterygoid?
: of, relating to, or lying in the region of the inferior part of the sphenoid bone of the vertebrate skull. pterygoid. noun. Definition of pterygoid (Entry 2 of 2) : a pterygoid part (such as a bone, muscle, or nerve)
Subsequently, question is, where is the Pterygoid process? Pterygoid process protrudes down from the junction in the middle of the body as well as greater wing of sphenoid posterior towards the last molar tooth. It splits within medial along with lateral pterygoid plates; the pterygoid fossa divides them from each other. A free posterior border is found in each plate.
Beside above, what is Pterygoid process used for?
The medial pterygoid, along with the masseter allows the jaw to move in a vertical direction as it contracts and relaxes. The lateral pterygoid allows the jaw to move in a horizontal direction during mastication.
What is the Pterygoid Hamulus?
The pterygoid hamulus is a hook-like process at the lower extremity of the medial pterygoid plate of the sphenoid bone. Around it glides the tendon of the tensor veli palatini. As well, it is the superior origin of the pterygomandibular raphe.
What does the lateral pterygoid do?
The lateral pterygoid muscle is a small, thick muscle located on each side of the skull that assists with mastication (chewing). This muscle functions to move the lower jaw forward, down, and side-to-side, which are all movements of the lower jaw that assist in chewing food.What muscle opens jaw?
Unlike the other three muscles of mastication, the lateral pterygoid is the only muscle of mastication that assists in depressing the mandible (opening the jaw). At the beginning of this action it is assisted by the digastric, mylohyoid and geniohyoid muscles.Where is the pterygoid fossa?
Each fossa is a cone-shaped paired depression deep to the infratemporal fossa and posterior to the maxilla on each side of the skull, located between the pterygoid process and the maxillary tuberosity close to the apex of the orbit.What does Ptery mean?
ptero- a combining form meaning “wing,” “feather,” used in the formation of compound words: pterodactyl.How do you palpate Pterygoids?
To palpate from outside the mouth, the head is tilted slightly to access the muscle. Palpation with one finger locates trigger points on the inner surface of the mandible by pressing upward at its angle. Palpation of the mid-belly is performed inside the mouth with the pad of the palpating index finger.What is the internal pterygoid muscle?
The medial pterygoid (or internal pterygoid muscle), is a thick, quadrilateral muscle of mastication. The mandibular branch of the fifth cranial nerve, the trigeminal nerve, innervates the medial pterygoid muscle.What muscle moves the jaw from side to side?
The medial pterygoid muscle functions to assist with elevation and protrusion of the mandible. It also assists the lateral pterygoid muscle with side to side mandibular motion to help with the grinding of food. The lateral pterygoid muscle is the primary muscle of the inferior temporal fossa.Where does foramen Rotundum open?
Foramen Rotundum. The foramen rotundum is located at the base of the greater wing of the sphenoid, inferior to the superior orbital fissure. It provides a connection between the middle cranial fossa and the pterygopalatine fossa. The maxillary nerve (branch of the trigeminal nerve, CN V) passes through this foramen.Where is the Palatine in the skull?
Palatine bone. The palatine bone is a paired, L-shaped bone that forms part of the nasal cavity and hard palate. It is located between the maxilla and sphenoid bone and is a part of inferior skull surface.Where are the Pterygoid processes located relative to the mandible?
The pterygoid muscles are the two jaw muscles of mastication located in the head on the inner surface of the mandible.What attaches to Pterygoid fovea?
Located behind the mandibular notch and below of the condyloid process, the pterygoid fovea is located on the anterior surface of the neck of the mandible and serves for the attachment of the lateral pterygoid muscle. Not to be confused with the pterygoid fossa of the sphenoid bone.What passes through Pterygomaxillary fissure?
The pterygomaxillary fissure transmits the posterior superior alveolar nerve, a branch of maxillary division of the trigeminal nerve from the pterygopalatine fossa to the infratemporal fossa. Terminal branches of the maxillary artery also enter the fissure.What goes through the pterygoid canal?
The pterygoid canal, also known as the Vidian canal, is a foramen in the base of skull, located in the sphenoid bone, inferomedial to the foramen rotundum. It transmits the Vidian artery and Vidian nerve from the middle cranial fossa to the pterygopalatine fossa.What attaches to spine of sphenoid?
Since the two ligaments, the anterior ligament of the malleus and the spheno-mandibular ligament (both are remnants of the sheath of intermediate part of the Meckel's cartilage) are attached to the intervening spine of sphenoid, it may be conjectured that his spine also develops from the Meckel's cartilage; the pull ofWhat makes up the Pterygomandibular raphe?
Anatomical terminology The pterygomandibular raphe (pterygomandibular ligament) is a ligamentous band of the buccopharyngeal fascia, attached superiorly to the pterygoid hamulus of the medial pterygoid plate, and inferiorly to the posterior end of the mylohyoid line of the mandible.What is the Hamular process?
pter·y·goid ham·u·lus the inferior, hook-shaped extremity of the medial plate of the pterygoid process, which serves as a pulley (trochlea) for the tendon of the tensor veli palati muscle. Synonym(s): hamular process of sphenoid bone, hamulus pterygoideus.What is Hamular notch?
Definition. The notch or fissure formed at the junction of the maxilla and the hamular process of the sphenoid bone, just beyond the distal end of the alveolar process. 
