Oral Anatomy​ MCQs

On opening the mouth , if the jaw deviates to the right side, it indicates the paralysis of___?

A. Right lateral pterygoid
B. Left lateral pterygoid
C. Right medial pterygoid
D. Left medial pterygoid

Depression of mandible is achieved by_?

A. Digastric
B. Lateral pterygoid
C. Geniohyoid
D. All of the above

Which is the predominant factor in the formation of the alveolar process_?

A. Eruption of teeth
B. Normal process of growth
C. Lengthening of the condyle
D. Overall growth of the bodies of the maxilla and the mandible

Temporo – mandibular ligament is attached to __?

A. Lateral aspect of TMJ
B. Posterior aspect of TMJ
C. Mandibular condyle
D. Coronioid process

Which of the portions of the intra articular disc is the thinnest ?

A. Anterior
B. Intermediate
C. Posterior
D. retrodiscal

Forward moment of mandible is done by_?

A. Lateral pterygoid
B. Medial pterygoid
C. Temporalis – anterior fibers
D. Temporalis- posterior fibers

Which muscle is responsible for translation of condyle ?

A. Medial pterygoid
B. Masseter
C. Superior constrictor of pharynx
D. Lateral pterygoid

All of the following muscles are elevators of the mandible except__?

A. Digastric
B. Massetor
C. Medial pterygoid
D. Temporalis

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