The pterygoid hamulus is a hook-shaped bony process located bilaterally on each medial pterygoid plate of the sphenoid bone, posterior and medial to each maxillary tuberosity. These processes project downward and anterolaterally; serve as attachment for ligaments and a network of muscles.
What is the hamulus for?
Definition of hamulus
: a hook or hooked process (as of a bone)
What is a hamulus in anatomy?
In vertebrate anatomy, a hamulus is a small, hook-shaped portion of a bone, or possibly of other hard tissue. In human anatomy, examples include: pterygoid hamulus. hamulus of hamate bone. lacrimal hamulus.
What muscle hooks around the hamulus?
The tensor tympani and tensor palati are actually one muscle with a raphe that wraps around the hamulus notch of the maxilla.
What wraps around the Pterygoid Hamulus?
The tensor veli palatini muscle is one of the five paired muscles of the soft palate. It is triangular in shape and its tendon wraps around the pulley of pterygoid hamulus to alter the shape of the soft palate.
What is the function of the pterygoid process?
The primary function of the pterygoid muscles is to produce movements of the mandible at the temporomandibular joint. Both muscles are innervated by branches of the mandibular division of the trigeminal nerve (CN V3), and receive their blood supply from branches of the maxillary artery.
What does pterygoid mean?
Definition of pterygoid
(Entry 1 of 2) : of, relating to, or lying in the region of the inferior part of the sphenoid bone of the vertebrate skull. pterygoid. noun.
What is infratemporal fossa?
The infratemporal fossa is a complex space of the face that lies posterolateral to the maxillary sinus, below the skull base, and between the pharyngeal sidewall and mandibular ramus. It overlaps with the masticator space and prestyloid parapharyngeal space.
Which bones have a hamulus?
The main anatomical feature of the hamate bone is the hamulus, a bony projection located at the distal portion of its palmar surface. The main function of this bone is to connect the distal row of carpal bones with the fourth and fifth metacarpal bones.
How do you pronounce hamulus?
noun, plural ham·u·li [ham-yuh-lahy].
What insects have hamuli?
Hamuli are hook-like setae on the anterior margin of the hind wing which interlock with the recurved posterior edge of the fore wing in the Hymenoptera during flight, making them functionally two winged. The possession of hamuli is an autapomorphy for the Hymenoptera.
Where is the Pterygoid plate located?
Two pairs of bony plates, the pterygoid processes, arise from the base of each alisphenoid bone. The outer plates are nearly horizontal in position. They extend from the posterior end of the maxillary bone caudad and laterad to the lateral surface of the tympanic bulla.
Where is the Hamular notch?
HAMULAR NOTCH Hamular notch forms the distal limit of the buccal vestibule, located between the tuberosity and the hamulus of the medial pterygoid plate.
What is Hamular bursitis?
Pterygoid hamular bursitis is an inflammation of bursae located between the tendon, muscle, and bony prominences. The minimal objective finding in an apparently normal orofacial apparatus and dependence on the subjective symptoms experienced by the patient with widespread referral pattern often perplexes the clinician.
What is tensor Palati?
4 The tensor veli palatini muscle is a fusiform muscle that originates at the muscular process of the petrous part of the temporal bone, pterygoid bone, and lateral lamina of the auditory tube, and travels rostroventral along the lateral wall of the nasopharynx lateral to the levator veli palatini.
What is pterygomandibular raphe?
The pterygomandibular raphe, also known as the pterygomandibular ligament, is a fibrous band of the buccopharyngeal fascia extending from the hamulus of the medial pterygoid plate to the mylohyoid ridge of the mandible 1.
What is levator veli palatini?
The levator veli palatini (levator) muscle is considered to be the primary muscle responsible for velar elevation. As its name implies, it functions to elevate the velum to create closure between the oral and nasal cavities (Moon and Kuehn, 2004).
