Correct Answer - Option 2 : Pivotal joint
The correct answer is the Pivotal joint.
The joint where our neck joins the head is a pivotal joint. It allows us to bend our head forward and backwards and turn the head to our right or left. In a pivotal joint, a cylindrical bone rotates in a ring.
- The ball and socket joint provides swinging and rotating movements.
- The articulating bone is received into the cavity of another bone, allowing the distal bone to move around three main axes with a common centre.
- The joint has to stabilize ligaments that limit the directions and extent to which the bones can be moved
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Hinge joints are those that allow movement along one plane.
- They facilitate bending and straightening actions, such as flexing a finger.
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In a hinge joint, protective cartilage covers the bones, and a thick gel called synovial fluid lubricates them, allowing them to move without rubbing against one another.