Write 4 line on the following human joints:- 1. Pivot Joints 2.Ball and socket joints 3.Hinge joints for class 6 students
Answers
Answer:
PLZ MARK AS BRAINLIEST!
Explanation:
1. Pivot Joint:-
→ Pivotal joints allow for rotation, twisting, extension, and flexibility.
→ This is the joint where our neck joints head and allow the movement of forward, backward, left, and right directions.
→ It is moreover like a cylindrical bone moving in a ring.
→ Examples of pivot joints are the pivot joints in the neck, that allows the head to rotate, and the pivot joints between the radius and ulna help in rotating the forearm.
2. Ball and socket joints :-
→ This is the type of joint in which ball shape surface of one bone fitted into the hollow space of another bone also called socket.
→ A ball and socket joint allow much more movement of bones than a hinge joint.
→ It enables the bone to move in many places.
→ Examples: shoulder joint, hip joint.
3. Hinge joints :-
→ A hinge joint is defined as the joint between two bones that allows movement only in one plane.
→ Hinge joints allow straightening, bending and flexing of joints.
→ Unlike the movement in hinge joints, the movement in ball-and-socket joints is along more than one plane.
→ Examples - Human fingers, toes, elbows, knees, and ankles contain hinge joints.