what is a joint.explain all the joints.plz
Answers
Explanation:
joints means were two or three bones meet
Explanation:
A structure in the human or animal body at which two parts of the skeleton are fitted together.
Name of main 4 joints :
1.Pivot joint.
Pivot joint, also called rotary joint, or trochoid joint, in vertebrate anatomy, a freely moveable joint (diarthrosis) that allows only rotary movement around a single axis. The moving bone rotates within a ring that is formed from a second bone and adjoining ligament.
2.Gliding joint.
Gliding joints occur between the surfaces of two flat bones that are held together by ligaments. Some of the bones in your wrists and ankles move by gliding against each other. ... The bones in a saddle joint can rock back and forth and from side to side, but they have limited rotation.
3.Ball and socket joint.
Ball-and-socket joint, also called spheroidal joint, in vertebrate anatomy, a joint in which the rounded surface of a bone moves within a depression on another bone, allowing greater freedom of movement than any other kind of joint.
4.Hinge Joints.
A hinge joint is a type of synovial joint that exists in the body and serves to allow motion primarily in one plane.The hinge joint is made up of two or more bones with articular surfaces that are covered by hyaline cartilage and lubricated by synovial fluid.