Question

4.answer the following question.
(a)what is ball and socket joint?
(b)which of the skull bones are movable?
(c)why can our elbow not move backwards? ​

Answer 1

Answer:

a)The ball and socket joint is a type of synovial joints in which one bone is hooked into the hollow space of another bone. This type of joint helps in rotatory movement.it enables the bone to move in many places

b)Mandible or Jawbone

c)elbow cannot move backwards because it has a hinge joint which allows the movement in one plane only

Explanation:

hope it helps nark me as brainliest pls

Answer 2

Answer:

a) . Ball and socket joint, also called spheroidal joint, in vertebrate anatomy, a joint in which the rounded surface of a bone moves within a depression on another bone, allowing greater freedom of movement than any other kind of joint.

b). The only bone in your skull that forms freely movable joints is your mandible, or jawbone

c). Our elbow cannot move backwards because it has a hinge joint which allows the movement in one plane only.

Explanation:

l hope it will clear to u.

And Happy Diwali to you!