Question 238 (part 2) · LDEK · Physiology of the masticatory system and occlusion
Indicate true statements regarding the masseter:
1) it is a strong muscle adducting the mandible;
2) in unilateral action it rotates the mandible slightly externally, ipsilaterally;
3) in unilateral action it rotates the mandible slightly internally, ipsilaterally;
4) in unilateral action it rotates the mandible slightly externally, contralaterally;
5) it is innerved by the lateral pterygoid nerve.
Correct answer is:
2) in unilateral action it rotates the mandible slightly externally, ipsilaterally;
3) in unilateral action it rotates the mandible slightly internally, ipsilaterally;
4) in unilateral action it rotates the mandible slightly externally, contralaterally;
5) it is innerved by the lateral pterygoid nerve.
Correct answer is:
- A. tylko 1.
- B. 1,2.
- C. 1,3.
- D. 1,4.
- E. 4,5.
Hint
Consider the masseter's attachment on the lateral surface of the ramus and which branch of the trigeminal nerve supplies it.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Prosthodontics
- Considering the action of masticatory force on mandible, it may be compared to lever:
- Axial loading of teeth may be achieved through contact:
- Arbitrarily established pivot point axis of TMJs is located:
- Intraoral registration of mandible movement:
- Indicate false statement:
- Indicate factors that influence the determination of occlusal height: