Types of joints joints are also called articulations

Types of joints (joints are also called articulations)

Synovial Joints • • • Freely moveable joints Cavity at the joint Encapsulated by dense connective tissue The d. CT secretes synovial fluid The epiphysis of the bones is covered with cartilage • Have tendons and ligaments around them

Types of synovial joints • Gliding joints, found intercarpal and intertarsal; the articulating surfaces are typically flat • Hinge joints, found in the fingers and elbow; the spoon-like surface fits into a concave surface (F/E) • Pivot joints, found at the atlas and axis as wellas between the proximal ends of the radius and ulna; surface fits into a ring formed by bone and ligament (Rot)

Types of synovial joints, continued • Ellipsoidal, between radius and carpals; oval into an elipse (F/E, Ab/Ad, Circ) • Saddle, where thumb attached to the wrist; like a saddle and a rider (F/E, Ab/Ad, Circ) • Ball and socket, shoulder joint; where a ball fits into a cuplike depression (F/E, Ab/Ad, rot, circ)

Cartilaginous joints • Cartilage fill the space between the joints, allowing only a little motion • Between vertebrae • Between sternum and ribs

Fibrous joints • Fibrous connective tissue joins the bones (fontanelles) • No real space between bones • Allows bones of skull to cross during childbirth