Articular disc of tmj receives insertion from which muscle______________?
(A) Medial pterygoid
(B) Lateral pterygoid
(C) Massetor
(D) Temporalis
Which of the following moment are performed by a non- working condyle ?
(A) Straightward
(B) Down wards forwards and lateral
(C) Down wards forwards and medial
(D) Down wards Back wards and medial
Retrusion of mandible is achieved by _______________?
(A) Lateral pterygoid
(B) Temporalis
(C) Masseter
(D) None of the above
Thinnest labial plate is found in the region of____________?
(A) Upper central incisors
(B) Lower central incisors
(C) Upper canines
(D) Lower canines
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