Question

have a streai
Answer the following:
(a) What is a ball and socket joint?
(b) Which of the skull bones are movable?
(c) Why can our elbow not move backward
INGS TO THINK ABOUT
discussed the many movements our bod
Colog​

Answer 1

Answer:

helps you move

Explanation:

Answer 2

Answer:

a) The place where the round ball like head of the femur bone fits into the cup like socket of the pelvic girdle is called the ball and socket joint.

b) The bone forming the lower jaw of the skull is movable.

c) The bone of the arm (humerus) meets both the ulna (the inner bone of the forearm) and radius (the outer bone of the forearm) to form a hinge joint at the elbow. The radius and ulna also meet one another in the elbow to permit a small amount of rotation of the forearm. The elbow therefore functions to move the arm like a hinge (forward and backward) and in rotation (outward and inward).