how does hinge joint, Pivot joint, Saddle joint Works
Answers
Answer:
Pivot joints consist of the rounded end of one bone fitting into a ring formed by the other bone. This structure allows rotational movement, as the rounded bone moves around its own axis. An example of a pivot joint is the joint of the first and second vertebrae of the neck that allows the head to move back and forth.
Saddle joint It connects the trapezium and the metacarpal bone of your thumb. The flexion-extension and abduction-adduction characteristics of this joint allow your thumb to spread out wide to help grasp large objects, while also allowing it to move inward, to tightly touch each of your other fingers.
Hinge joints are those that allow movement along one plane. They facilitate bending and straightening actions, such as flexing a finger. 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.