The condyloid process of the mandible articulates with the temporal bone of the skull at the mandibular fossa.
Which bone is the mandibular fossa?
The mandibular condyle, covered by a thin layer of fibrocartilage, is the major moving structure in the TMJ. It articulates against the glenoid fossa, also called mandibular fossa, which is a part of the upper temporal bone.
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.
Where is the temporomandibular fossa located?
The mandibular fossa is a concave depression in the squamous portion of the temporal bone.
What is the mandibular fossa used for?
The mandibular fossa is the cavity in the temporal bone that enables interaction with the mandibular condyle.
Is mandibular fossa same as mandibular foramen?
Mandibular foramen | |
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FMA | 53172 |
Anatomical terms of bone |
What is articular fossa?
The articular tubercle (eminentia articularis) is a bony eminence on the temporal bone in the skull. It is a rounded eminence of the anterior root of the posterior end of the outer surface of the squama temporalis. … The articular tubercle is the site of attachment of the lateral ligament of the temporomandibular joint.
What is mandibular process?
The mandibular process is an embryological structure which gives rise to the lower jaw elements (e.g., mandible bone) of the developing face.
What does fossa mean 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.
Which of the following articulates with the mandibular fossa?
A) Condylar process articulates in the mandibular fossa. The temporomandibular joint (TMJ), commonly called the jaw, consists of articulations…
Which bone has the mandibular fossa quizlet?
The mandibular fossa of the temporal bone forms the socket in which the mandibular condyle of the mandible articulates, forming the temporomandibular joint.
What is the alveolar process?
The alveolar process is the horizontal portion of the maxilla that holds the tooth roots. b. Alveoli for the tooth roots are present all along the alveolar process, except where these have been resorbed following the loss of teeth.
What type of joint is temporomandibular?
The temporomandibular joint (TMJ), also known as the mandibular joint, is an ellipsoid variety of the right and left synovial joints forming a bicondylar articulation.
Where is the condyle?
A condyle (/ˈkɒndəl/ or /ˈkɒndaɪl/; Latin: condylus, from Greek: kondylos; κόνδυλος knuckle) is the round prominence at the end of a bone, most often part of a joint – an articulation with another bone. It is one of the markings or features of bones, and can refer to: On the femur, in the knee joint: Medial condyle.
What is the mandibular condyle?
The condylar cartilage is an important growth site in the mandible, contributing to the elongation of the mandibular ramus. … The round upper end of the lower jaw, or the movable portion of the joint, is considered secondary cartilage (condylar cartilage).
What does the mastoid process do?
Mastoid Process Function
The mastoid process’ main function is to provide an area of attachment to several important muscles in the head. For instance, it is the attachment site of certain muscles of the neck: Sternocleidomastoid muscle – enables the rotation of the head to the contralateral side.
Where is the lacrimal fossa?
The lacrimal fossa (or fossa for lacrimal gland) is located on the inferior surface of each orbital plate of the frontal bone. It is smooth and concave, and presents, laterally, underneath the zygomatic process, a shallow depression for the lacrimal gland.
What is Ramus of mandible?
The rami are two vertical processes located on either side of the body; they join the body at the angle of the mandible. At the superior aspect of each ramus, the coronoid and condylar processes articulate with the temporal bone to create the temporomandibular joint which permits mobility.
Why is the mandibular foramen important?
On the medial surface of the mandible is the mandibular foramen which allows the entrance of a nerve and vessels that supply the lower jaw, as well as the teeth, some oral sensation and sensation over the chin.
What travels through mental foramen?
It is at the end of the mandibular canal, which begins at the mandibular foramen on the posterior surface of the mandible. It transmits the terminal branches of the inferior alveolar nerve (the mental nerve), the mental artery, and the mental vein.
What are the branches of the mandibular nerve?
On its extracranial course, it divides into three main branches: the buccal, mental, and auriculotemporal nerves. The buccal nerve pierces the skin on the face behind the ramus of the mandible, passes in front of the masseter, and innervates the skin anteriorly of the buccinator muscle.
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.
What is the Masseteric fossa?
The masseteric fossa (Fossa masseterica) is the depression for the masseter muscle on the lateral surface of the ramus of the mandible.
What does mandibular mean?
: of, relating to, or located near a mandible. mandibular. noun. Medical Definition of mandibular (Entry 2 of 2) : mandibular nerve.
What is maxilla and mandible?
The maxilla (plural: maxillae /mækˈsɪliː/) in vertebrates is the upper fixed (not fixed in Neopterygii) bone of the jaw formed from the fusion of two maxillary bones. In humans, the upper jaw includes the hard palate in the front of the mouth. … The mandible is the movable part of the jaw.
What is the mandible derived from?
The word “mandible” derives from the Latin word mandibula, “jawbone” (literally “one used for chewing”), from mandere “to chew” and -bula (instrumental suffix).
How many fossa are in the body?
Bone | Cranial fossa | Number |
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sphenoid | middle cranial fossa | 2 |
temporal | middle cranial fossa | 2 |
temporal | posterior cranial fossa | 2 |
temporal | posterior cranial fossa | 2 |
What is a tubercle anatomy?
A tubercle is a small rounded point of a bone. It also refers to a nodule attached to bone, mucous membrane (moist layer lining parts of the body), or skin. The term tubercle is less commonly used to refer to skin irritation resulting from a tuberculosis (TB) infection.
Is a fossa a cat?
Fossa | |
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Order: | Carnivora |
Suborder: | Feliformia |
Family: | Eupleridae |
Genus: | Cryptoprocta |
Which pair of bones meets along the sagittal suture?
The sagittal suture connects the two parietal bones. The lambdoid connects the two parietal bones to the occipital bone.
What is the rounded part of your skull called?
The interior space that is almost completely occupied by the brain is called the cranial cavity. This cavity is bounded superiorly by the rounded top of the skull, which is called the calvaria (skullcap), and the lateral and posterior sides of the skull.
Which region of the vertebral column is immediately superior to the lumbar region?
Which region of the vertebral column is immediately inferior to the lumbar region? The sacrum is located below the lumbar region, articulating superiorly with L5 and inferiorly with the coccyx. The shape of the spinous process can be used to help determine if a vertebra is from the lumbar region.
What are the 4 Fontanels?
- Sphenoidal. Anterolateral ( on both sides of head.
- Mastoid. Posterolateral (on both sides of head)
- Frontal. Anterior (diamond shaped)
- Occipital. Posterior.
What is the fossa located on the temporal bone that articulates with the mandible?
The mandibular fossa (glenoid fossa) is an oval depression behind the anterior root of the zygomatic process of temporal bone for the reception of the condyle of the mandible.
Which landmark is not visible from an anterior view?
The superior nasal conchae are located posteriorly and are therefore not visible in the anterior view. Figures 9.1, 9.3, 9.5, 9.7, and 9.10 N/A Contributes to the anterior cranial fossa; forms part of the nasal septum and the nasal cavity; contributes to the medial wall of the orbit.
What is the difference between alveoli and alveolus?
What is the difference between Alveoli and Alveolus? The only difference between alveoli and alveolus is that alveolus is the singular word of alveoli.
What are Sharpey’s Fibres?
Sharpey’s fibres (bone fibres, or perforating fibres) are a matrix of connective tissue consisting of bundles of strong predominantly type I collagen fibres connecting periosteum to bone. … In the spine, similar fibres join the intervertebral disc to the adjacent vertebrae.
What 3 bones hold the alveolar processes?
Anatomical terms of bone
The alveolar process (/ælˈviːələr/) is the thickened ridge of bone that contains the tooth sockets on the jaw bones (in humans, the maxilla and the mandible). The structures are covered by gums as part of the oral cavity.
What is the hinge of the jaw called?
The temporomandibular (tem-puh-roe-man-DIB-u-lur) joint (TMJ) acts like a sliding hinge, connecting your jawbone to your skull. You have one joint on each side of your jaw.
What is the gliding movement?
Gliding movements occur as relatively flat bone surfaces move past each other. Gliding movements produce very little rotation or angular movement of the bones. The joints of the carpal and tarsal bones are examples of joints that produce gliding movements.
What is ellipsoid joint?
Definition. A synovial joint in which an oval-shaped process of one bone fits into an elongated or ellipsoidal cavity of the other, allowing movements such as flexion, extension, abduction and adduction.