Question

Describe with example any three moveable joint of the body. ​

Answer 1

Answer:

Movable joints are also the most common type of joint in your body. Your fingers, toes, hips, elbows, and knees all provide examples of movable joints. The surfaces of bones at movable joints are covered with a smooth layer of cartilage. The cartilage reduces friction between the bones.

Answer 2

Explanation:

On the basis of movement the following types of movable joints are as:

(i) Ball and socket joint: In this type of joint the ball-shaped head of a bone is fitted in such a manner in the socket made by another bone, Which allows free movement in all directions. For example, the joint between the head of the humerus and glenoid cavity of the pectoral girdle.

(ii) Pivot joint: In Pivot joint, a pointed end of a bone is fitted in a pit of another bone is such manner that the later can show rotational movement around the former. For example, the joint between axis vertebra and atlas vertebra holding the skull. 

(iii) Hinge joint: At such joints, one bone can move in one direction up to a certain limit, like the hinge of doors and windows. For example, Knee, elbow etc. 

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