Which bone bears the mandibular fossa
Which bone bears the mandibular fossa quizlet?
The temporal bone bears a mandibular fossa that articulates with the condylar process of the mandible.
What attaches to mandibular fossa?
The anterior disc attaches to the joint capsule and the superior head of the lateral pterygoid. The posterior portion attaches to the mandibular fossa and is referred to as the retrodiscal tissue.
Is the mandibular fossa part of the mandible bone?
The mandibular fossa is the depression in the temporal bone that articulates with the mandible. In the temporal bone, the mandibular fossa is bounded anteriorly by the articular tubercle and posteriorly by the tympanic portion of the temporal bone, which separates it from the external acoustic meatus.
Which bones contain depressions called the mandibular fossa quizlet?
A depression in the temporal bone, the mandibular fossa, articulates with the mandible. A sagittal section of the skull shows the inner surface of the braincase, including the frontal, parietal, occipital, sphenoid, ethmoid, and temporal bones.
Which is a sesamoid bone quizlet?
sesamoid bones. Sesamoid bones are mostly rounded masses embedded in certain tendons and are usually related to the surfaces of joints. Included in this group are the patella, metocarpophalangeal joints of the hands, and metatarsophalangeal joints of the toes.
Is mandibular fossa same as mandibular foramen?
The mandibular foramen is an opening on the internal surface of the ramus of the mandible. It allows for divisions of the mandibular nerve and blood vessels to pass through.
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| Mandibular foramen | |
|---|---|
| FMA | 53172 |
| Anatomical terms of bone | |
What is articular fossa?
Introduction. The glenoid fossa, located at the inferior aspect of the squamous part of temporal bone, is composed of the glenoid fossa and articular eminence of the temporal bone. It is sometimes described as the temporal component of the temporomandibular joint (TMJ).
Where is the mandibular symphysis?
The mandibular symphysis is the line of fusion of the lateral halves of the body of the mandible which splits inferiorly to form the mental protuberance.
Where is the mandibular fossa located quizlet?
Where is the mandibular fossa located? The mandibular fossa is located immediately anterior to the external auditory meatus, just inferior to the proximal part of the zygomatic process.
What enters the mandibular foramen?
The mandibular foramen is an opening at the internal aspect of the ramus of the mandible. The inferior alveolar branch of the mandibular division of the trigeminal nerve, as well as the inferior alveolar vessels, enter the foramen and supply the lower jaw.
Which of these bones has a mastoid process and articulates with the mandibular condyle?
The posterior temporal bone contains the acoustic meatus (the ear canal). Just anterior to a bump behind and below the ear called the mastoid process, the temporal bone articulates with the mandible (the jawbone). This joint is called the temporomandibular joint.
What articulates mandibular fossa?
temporal bone
Function. The condyloid process of the mandible articulates with the temporal bone of the skull at the mandibular fossa.
What bone is the mastoid process on?
the temporal bone
The mastoid part of the temporal bone is its posterior component. The inferior conical projection of the mastoid part is called the mastoid process.
What are the four Fontanels and their location?
What are the four fontanels and their location? Frontal fontanel- located between two parietal bones and two frontal bones. Sphenoidal fontanelle- located at the junction of the frontal, parietal, temporal, and sphenoid bones. Mastoid fontanelle- located at the junction of the parietal, occipital, and temporal bones.
What is the fossa in anatomy?
Fossa – A shallow depression in the bone surface. Here it may receive another articulating bone or act to support brain structures. Examples include trochlear fossa, posterior, middle, and anterior cranial fossa. … Head – A rounded, prominent extension of bone that forms part of a joint.
What is the glenoid fossa of the TMJ?
The glenoid fossa forms a deep concavity in the temporal bone, receiving the mandibular condyle to make the hinge of TMJ function. Associated with the TMJ are also the tendon of the pterygoid muscle and various surrounding ligaments.
Where is the glenoid fossa in the skull?
THE glenoid fossae are depressions on the basal portion of the tem- poral bones of the skull. They furnish articular surfaces for the condylar processes of the mandible. If the mandible be considered a lever, these fossae furnish the points of resistance -for the fulcrum.
Where is the fossa?
Madagascar
A relative of the mongoose, the fossa is unique to the forests of Madagascar, an African island in the Indian Ocean. Growing up to 6 feet long from nose to tail tip, and weighing up to 26 pounds, the fossa is a slender-bodied catlike creature with little resemblance to its mongoose cousins.
Which bones form the posterior cranial fossa?
The posterior fossa extends from the tentorial incisura to the foramen magnum and is formed by the occipital, temporal, parietal, and sphenoid bones. If a mass exists in the cerebellum, upward herniation through the tentorial incisura or downward tonsillar herniation through the foramen magnum may occur.