Joints and Movements

Flashcards covering key terminology and concepts related to joints, their classification, and movements.

Articulation

The site where two or more bones meet.

Synovial Joint

A type of joint characterized by a fluid-filled joint capsule allowing free movement.

Fibrous Joint

A joint where bones fit closely together, allowing no movement.

Endochondral Ossification

A process of bone formation where cartilage is replaced by bone; examples include long bones.

Osteoblast

A bone cell responsible for the creation of bone tissue.

Menisci

Pads of fibrocartilage located between articulating bones in synovial joints.

Bursae

Sacs filled with synovial fluid that cushion joints and facilitate movement.

Diarthroses

Freely movable joints classified functionally.

Amphiarthroses

Slightly movable joints classified functionally.

Synarthroses

Immovable joints classified functionally.

Suture

A fibrous joint found only in the skull with bone edges interlocking.

Condyloid Joint

A synovial joint where a condyle fits into an elliptical socket, allowing movement in two planes.

Ball and Socket Joint

The most movable joint type where a ball-shaped head of one bone fits into a concave socket.

Gliding Joint

A nonaxial joint with flat articular surfaces allowing limited gliding movement.

Hinge Joint

A uniaxial joint that allows movement only in one plane, allowing flexion and extension.

Pivot Joint

A uniaxial joint where a bone rotates around another bone, allowing rotational movement.

Angular Movements

Movements that change the angle between articulating bones, including flexion and extension.

Supination

The rotation of the forearm so the palm faces upward.

Pronation

The rotation of the forearm so the palm faces downward.

Inversion

Turning the sole of the foot inward.

Eversion

Turning the sole of the foot outward.