Question

4.
Answer the following:
(a) What is a ball and socket joint?
(b) Which of the skull bones are movable?
Mc) Why can our elbow not move backwards?

please answer this
please.........​

Answer 1

Answer:

Ball and socket joints are move in all directions

lower jaw is moveable jaw

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

Explanation:

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Answer 2

Answer:

Lower jaw bone or mandible is the only movable bone in the skull. Why can our elbow not move backwards? Answer: Elbow joint is composed of hinge joint. ... Hence, we cannot move our elbows backwards.

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