Which of the following movement (s) is / are involved in the opening of the mouth?
(A) Only hinge ( rotation )
(B) Only translation
(C) Hinge followed by translation
(D) Translation followed by hinge
Articular disc of TMJ is__________?
(A) Thickest posteriorly
(B) Narrow in the centre
(C) Strengthened by lateral pterygoid
(D) All of the above
The zygomatic bone does not articulate with________________?
(A) Frontal bone
(B) Maxillary bone
(C) Nasal bone
(D) Temporal bone
Which of the following is not a structural element of the temporomandibular joint ?
(A) Sigmoid notch
(B) Articular disc
(C) Capsular ligament
(D) Joint cavities
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
Lateral movement of condyle is caused by_____________?
(A) Contralateral lateral pterygoid muscle
(B) Both lateral and medial pterygoid muscle
(C) Epsilateral lateal pterygoid muscle
(D) Bilateral contraction of lateral pterygoid muscle
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