Joint Movement and Classification

Vocabulary flashcards covering key terms related to joints, their classifications, and types of movements.

Joint

An articulation where two bones connect, allowing for body movement.

Synarthrosis

An immovable joint that allows no movement.

Amphiarthrosis

A slightly movable joint that allows limited movement.

Diarthrosis

A freely movable joint that allows a wide range of motion.

Bony Joint

A joint formed when two bones fuse together.

Fibrous Joint

A joint connected by dense connective tissue, allowing little to no movement.

Cartilaginous Joint

A joint where bones are connected by cartilage, allowing more movement than fibrous joints.

Synovial Joint

A highly movable joint characterized by the presence of a synovial cavity.

Synovial Fluid

A viscous fluid secreted by synovial membranes to lubricate joints.

Meniscus

A cartilage pad that cushions the joint and stabilizes it.

Dislocation

An injury where articulating surfaces are forced out of position.

Subluxation

A partial dislocation of a joint.

Flexion

A movement that decreases the angle between two body parts.

Extension

A movement that increases the angle between two body parts.

Abduction

A movement away from the midline of the body.

Adduction

A movement towards the midline of the body.

Circumduction

A conical movement of a body part, which describes a circular path.

Rotation

A movement around an axis.

Pronation

The rotational movement of the forearm that indicates palm down.

Supination

The rotational movement of the forearm that indicates palm up.

Inversion

A movement that twists the sole of the foot medially.

Eversion

A movement that twists the sole of the foot laterally.

Elevation

The upward movement of a body part.

Depression

The downward movement of a body part.

Knee Joint

A complex hinge joint that transfers weight from femur to tibia.

Patellar Ligament

A ligament that connects the patella to the tibia.

Hip Joint

A ball-and-socket joint that allows for a wide range of motion.

Shoulder Joint

A highly mobile ball-and-socket joint that connects the humerus to the scapula.