The Joints

Front

What is a joint?

Back

A joint is a connection between two or more bones that allows for movement and flexibility.

Front

What are the main types of joints in the human body?

Back

The main types of joints are: 1. Hinge joints (e.g., elbow, knee), 2. Ball and socket joints (e.g., shoulder, hip), 3. Pivot joints (e.g., neck), 4. Saddle joints (e.g., thumb), 5. Condyloid joints (e.g., wrist), 6. Gliding joints (e.g., between vertebrae).

Front

What is circumduction?

Back

Circumduction is a circular movement of a limb that involves flexion, extension, abduction, and adduction in sequence.

Front

What is flexion?

Back

Flexion is the bending movement that decreases the angle between two body parts.

Front

What is extension?

Back

Extension is the straightening movement that increases the angle between two body parts.

Front

What connects bone to bone?

Back

Ligaments connect bone to bone, providing stability to joints.

Front

What is a hinge joint?

Back

A hinge joint allows movement in one plane, similar to the opening and closing of a door (e.g., elbow, knee).

Front

What is a ball and socket joint?

Back

A ball and socket joint allows for rotational movement in multiple directions (e.g., shoulder, hip).

Front

What is the function of tendons?

Back

Tendons connect muscles to bones, enabling movement when muscles contract.

Front

What is the role of synovial fluid?

Back

Synovial fluid lubricates joints, reducing friction and allowing for smooth movement.