Podcast
Questions and Answers
What type of cartilage lines the articular surfaces of the temporomandibular joint (TMJ)?
What type of cartilage lines the articular surfaces of the temporomandibular joint (TMJ)?
- Elastic cartilage
- Fibrous cartilage
- Hyaline cartilage
- Fibrocartilage (correct)
How many compartments is the joint cavity of the TMJ divided into?
How many compartments is the joint cavity of the TMJ divided into?
- Three compartments
- One compartment
- Four compartments
- Two compartments (correct)
What type of joint is the temporomandibular joint (TMJ) considered as a whole?
What type of joint is the temporomandibular joint (TMJ) considered as a whole?
- Hinge joint
- Ball and socket joint
- Ginglymoarthrodial joint (correct)
- Pivot joint
What forms most of the articular surface of the mandibular fossa in the temporomandibular joint (TMJ)?
What forms most of the articular surface of the mandibular fossa in the temporomandibular joint (TMJ)?
At what angle is the transverse ridge of dense bone in the glenoid fossa tilted down to the occlusal plane?
At what angle is the transverse ridge of dense bone in the glenoid fossa tilted down to the occlusal plane?
Flashcards
Fibrocartilage
Fibrocartilage
Type of cartilage lining the TMJ articular surfaces.
Two compartments
Two compartments
The TMJ joint cavity is divided into two compartments.
Ginglymoarthrodial joint
Ginglymoarthrodial joint
The TMJ is classified as a ginglymoarthrodial joint.
Articular eminence
Articular eminence
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$25^{ ext{o}}$ tilt
$25^{ ext{o}}$ tilt
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Study Notes
Temporomandibular Joint (TMJ)
- The articular surfaces of the TMJ are lined with fibrocartilage.
Joint Cavity
- The joint cavity of the TMJ is divided into two compartments.
Type of Joint
- The temporomandibular joint (TMJ) is considered a ginglymo-arthrodial joint as a whole.
Articular Surface
- The articular surface of the mandibular fossa in the TMJ is formed mainly by the squamous part of the temporal bone.
Glenoid Fossa
- The transverse ridge of dense bone in the glenoid fossa is tilted down to the occlusal plane at an angle of approximately 30 degrees.
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Description
Test your knowledge about the anatomy and function of the temporomandibular joint (TMJ), which is a synovial joint in the head and neck region. Learn about the unique features of TMJ and its role in jaw movement and function.
