Question

A joint made for power is?
A. Knee joint
B. Suture in cranium
C. Joint between vertebrae
D. Mandibular joint

Answer 1

Hint: Temporomandibular joint or also called as jaw point is a bi-arthrodial hinge which means, it is a joint or union of two or more bones of the organism’s body. Its main function is to give flexibility and provide motion to that part of the body.

Complete answer:
Temporomandibular joint (TMJ) is the joint responsible for the movement or motion of the joint and helps in many complex processes required for the survival of life. This TMJ is present in-between the condylar head of the mandible and mandibular fossa of the temporal bone and this whole system consists of TMJ, teeth and soft tissues of the mouth.
This whole system helps in processes like eating or chewing, breathing and speaking.
It contains a capsule which is made up of fibrous membrane that covers the joint and connected to the disc and neck of the mandibular condyle.
Articular disc is further extension of the capsule and it is made up of the fibers.
Some individuals may have disorders related to this joint. Reason for these disorders is different and sometimes difficult to find out. These disorders can be due to genetic mutations, arthritis or jaw injuries. Generally, these disorders are temporary and can be treated without surgery.

Thus, we can say that the power joint present in our body is a temporomandibular joint (TMJ). Ans our correct option is option ‘D’ that is, mandibular joint.

Note: The TMJ is made up of fibrocartilaginous surfaces and has a disc which helps in division of joint into two main cavities. These two superior and inferior cavities are present in different superior and inferior synovial membranes.