question_answer

(i)  Which type of movement would have been possible if

(a) our elbow had a fixed joint.

(b) we were to have a ball and socket joint between our neck and head.

(ii) Name the type of joint in your hand which helps you to grasp a badminton racquet.

Answer:

(i)   (a) If our elbow had a fixed joint then we would not be able to bend our arms.

(b) If we have a ball and socket joint between our neck and head, then we would be able to rotate our head

(ii) Hinge joint.