TMJ KIA

A

1. Muscles of mandibular elevation include the: A. masseter and temporalis B. medial pterygoid and lateral pterygoid C. sternocleidomastoid and digastric D. tensor tympani and mylohyoid

C

10. Forceful jaw opening would require which of the following muscles? A. masseter B. temporalis C. suprahyoids D. medial pterygoid

C

2. The muscle that has attachments to the articular disc is the: A. masseter B. medial pterygoid C. lateral pterygoid D. temporalis

A

3. Muscles that can cause ipsilateral deviation are the: A. masseter and temporalis B. medial and lateral pterygoid C. lateral pterygoid and masseter D. temporalis and thyrohyoid

C

4. Actions of the medial pterygoid include: A. depresses and contralaterally deviates B. depresses and ipsilaterally deviates C. elevates and contralaterally deviates D. elevates and ipsilaterally deviates

A

5. The TMJ is composed of which two articulating surfaces? A. articular eminence and mandibular condyle B. articular eminence and coronoid process C. mandibular fossa and coronoid process D. mandibular notch and articular eminence

B

6. The fibrocartilagenous disc is: A. biconvex B. biconcave C. concave superiorly D. concave inferiorly

A

7. Mouth opening/closing occurs in which plane? A. sagittal B. frontal C. transverse

B

8. Jaw protrusion means the bottom teeth move ____________ the top teeth. A. behind B. in front of C. below D. on top of

B

9. The temporomandibular joint is a: A. synchondrosis B. diarthrosis C. syndesmosis