Basic Anatomy of TMJ

~ Exam ~

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This test has 20 questions.

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1. The major bones involved with the TMJ are:

  a. Temporal

  b. Mandible

  c. Hyoid

  d. Maxillae

  e. A, B, C


2. The Mandible articulates with:

  a. the coronoid process

  b. the maxillae

  c. the temporal bone


3. The Temporal Muscle inserts on the Coronoid Process of the Mandible via:

  a. a tendon

  b. a ligament


4. The mandible is articulated with the skull via:

  a. ligaments

  b. tendons

  c. A & B


5. The Hyoid Bone is unique in that:

  a. It does not articulate with any other bone.

  b. It is made mostly of fibrous tissue.

  c. It stabilizes the sternocleidomastoid muscle.

  d. It is mainly involved with closing the mandible


6. The TMJ is separated from the skull via caritlagino-fibrous disc.

  a. True

  b. False


7. The only other joint with the make-up of the TMJ Disc is the:

  a. Knee

  b. Glenoid fossae

  c. Shoulder

  d. Sternoclavicular joint


8. The muscle which boasts the most individual movements is:

  a. Masseter

  b. Temporalis

  c. External pteryogid

  d. Sternocleidomastoid


9. The closing muscles of the mandible are:

  a. Internal Pterygoid and Temporalis

  b. Masseter and External Pterygoid

  c. All of the Above


10. Teeth cannot affect the well-being of the TMJ

  a. True

  b. False


11. The main purpose of teeth is to aid in the closing of the mandible.

  a. True

  b. False


12. The main function of the External Pterygoid Muscle is to:

  a. Close the mandible

  b. Guide the disc over the hyoid bone

  c. Guide the disc over the glenoid fossae


13. Ligaments attach bone to muscle.

  a. True

  b. False


14. There are three major ligaments attaching the mandible to the skull.

  a. True

  b. False


15. The Capsular ligament attaches the mandible to:

  a. Hyoid bone

  b. Temporal bone

  c. Maxillae


16. A sensory nerve carries stimuli away from the CNS.

  a. True

  b. False


17. The Facial Nerve is a Sensory Nerve.

  a. True

  b. False


18. The Trigeminal Nerve has five major branches.

  a. True

  b. False


19. The mandibular branch of the Trigeminal Nerve breaks into three branches before it enters the mandible.

  a. True

  b. False


20. The _____________ nerve innervates the TMJ.

  a. Temporal nerve

  b. Lingual nerve

  c. Maxillary nerve

  d. Auriculotemporal nerve