Presentation on theme: "JOINTS OF THE HUMAN BODY. DEFINITION - A place where two things or parts are joined together. - Areas where two bones meet."— Presentation transcript:
JOINTS OF THE HUMAN BODY
DEFINITION - A place where two things or parts are joined together. - Areas where two bones meet.
Immovable Joint A tough fiber holds the bones together so they can’t move.
Semi-movable Joints Each of the bones rests on a cushion of cartilage. The bones can move slightly, but ligaments stop them from moving too far.
Freely Movable Joints All the moving parts are held together by ligaments. Most joints are this type There are 6 types.
Type 1 – Hinge Joint Hinge – (Uniaxial) Hinge joints, like in your knee and elbow, enable movement similar to the opening and closing of a hinged door.
Type 2 – Pivot Joint Pivot – (Uniaxial) The pivot joint in your neck allows you to turn your head from side to side.
Type 3 – Saddle Joint Saddle – (Biaxial) The only saddle joints in your body are in your thumbs. The bones in a saddle joint can rock back and forth and from side to side, but they have limited rotation.
Type 4 – Condyloid Condyloid – (Biaxial) Oval joints, such as the joint at the base of your index finger, allow bending and extending, rocking from side to side, but rotation is limited.
Type 5 – Gliding Joint Gliding – (Multiaxial) 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 glide against each other, but have limited range of motion.
Type 6 – Ball and Socket Joint Ball and Socket – (Multiaxial) Ball and socket joints, like your hip and shoulder joints, are the most mobile type of joint in the human body. They allow you to swing or rotate your arms and legs in many different directions.
TRY THESE!!!!! Classification of Joints Activity Joint Movement