Retrusion of mandible is achieved by ____ ?
A. Masseter
B. Lateral pterygoid
C. Temporalis
D. None of them
ORAL ANATOMY
Oral anatomy MCQs with answers for medical students. Anatomy of the oral cavity for test preparation in medical exams.
Premolar alveoli are what shape in cross section ___ ?
A. Oval
B. Kidney shaped
C. Rectangular
D. Triangular
Which of the following movement (s) is / are involved in the opening of the mouth ?
A. Hinge followed by translation
B. Translation followed by hinge
C. Only hinge ( rotation )
D. Only translation
Articular disc of TMJ is ____ ?
A. Strengthened by lateral pterygoid
B. Thickest posteriorly
C. Narrow in the centre
D. All of them
Zygomatic bone does not articulate with ______ ?
A. Nasal bone
B. Temporal bone
C. Frontal bone
D. Maxillary bone
Which of the following is not a structural element of the temporomandibular joint?
A. Capsular ligament
B. Joint cavities
C. Sigmoid notch
D. Articular disc
On opening the mouth , if the jaw deviates to the right side, it indicates the paralysis of _____ ?
A. Left medial pterygoid
B. Right lateral pterygoid
C. Left lateral pterygoid
D. Right medial pterygoid
Depression of mandible is achieved by ____ ?
A. Geniohyoid
B. Digastric
C. Lateral pterygoid
D. All of them
Lateral movement of condyle is caused by ___ ?
A. Epsilateral lateal pterygoid muscle
B. Bilateral contraction of lateral pterygoid muscle
C. Both lateral and medial pterygoid muscle
D. Contralateral lateral pterygoid muscle
Which is the predominant factor in the formation of the alveolar process _____ ?
A. Overall growth of the bodies of the maxilla and the mandible
B. Eruption of teeth
C. Normal process of growth
D. Lengthening of the condyle