Temporomandibular Joint (TMJ) Anatomy Quiz

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Questions and Answers

Which muscle is responsible for elevating the mandible during the process of chewing?

  • Medial pterygoid
  • Masseter
  • Lateral pterygoid
  • Temporalis (correct)

What type of synovial joint is the temporomandibular joint (TMJ)?

  • Ball and socket joint
  • Combined hinge and planar joint (correct)
  • Pivot joint
  • Hinge joint

Which structure in the TMJ articulates with the articular tubercle of the temporal bone?

  • Condylar process (correct)
  • Disc
  • Articular surfaces
  • Mandibular fossa

Which muscle is responsible for closing the eyelids?

<p>Orbicularis Oculi (C)</p> Signup and view all the answers

What is the primary function of Levator Palpebrae Superioris?

<p>Elevating and retracting the upper eyelid (C)</p> Signup and view all the answers

Which part of the skull is the Galea aponeurotica layer attached to?

<p>Superior nuchal line (C)</p> Signup and view all the answers

In which area is the muscle Frontalis located?

<p>Forehead (C)</p> Signup and view all the answers

What does the TMJ-articular disc (meniscus) do?

<p>Separates the joint cavity into superior and inferior compartments (A)</p> Signup and view all the answers

Which structure has a loose covering around the circumference of the joint?

<p>Articular capsule (C)</p> Signup and view all the answers

Where does the TMJ-lateral ligament extend from and to?

<p>From tubercle of the zygomatic process to the neck of the mandible (B)</p> Signup and view all the answers

What is the function of TMJ-Sphenomandibular ligament?

<p>Contributes significantly to the strength of TMJ (B)</p> Signup and view all the answers

Which ligament separates the parotid gland from the submandibular gland?

<p>Stylomandibular ligament (A)</p> Signup and view all the answers

How is dislocation of TMJ commonly caused?

<p>Dislocation is caused by a sideways blow to the chin (D)</p> Signup and view all the answers

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