Articulations (Joints) Flashcards

Flashcards about Articulations (Joints)

Joints

Places where bones meet, allowing movement, stability, and growth.

Synarthrosis

No movement.

Amphiarthrosis

Little movement.

Diarthrosis

Lots of movement.

Fibrous joints

Very tight joints with no movement (e.g., skull, teeth).

Cartilaginous joints

Joints held together with bendy cartilage (e.g., spine, ribs meeting chest).

Synovial Joints

Joints with a space called the joint cavity, containing synovial fluid for smooth movement.

Synovial fluid

Like lotion for joints helps move smooth.

Uniaxial

Movement in one way (like the elbow).

Biaxial

Movement in two ways (like fingers).

Multiaxial

Movement in three ways (like the shoulder).

Flexion/Extension

Bending and stretching.

Abduction/Adduction

Move away/toward.

Rotation

Turning.

Plane joint

Flat bones sliding (like hand bones).

Hinge joint

Open/close like a door (elbow).

Pivot joint

Turn side to side (neck).

Ball-and-socket

Big wiggly joint (shoulder, hip).

Unhappy triad

Three parts of the knee that can get hurt together.

Dislocated shoulder

Arm bone out of joint.

Total replacement

Both parts of the hip are replaced.

Partial replacement

Only one part of the hip is replaced.

Supination

Palm up like holding soup.

Abduction

Taking limb away.

Adduction

Adding limb back to the body.

Range of motion

How far a joint moves.