7.3 Joints

A joint or articulation is a place where two bones or bone and cartilage come together. The scientific study of the structure and function of joints is called arthrology. Joints are classified as fibrous joints (immoveable), cartilaginous joints (slightly moveable), and synovial joints (freely moveable).

Definition

Joint (Articulation): A joint or articulation is a place where two bones or bone and cartilage come together.

Arthrology: The scientific study of the structure and function of joints is called arthrology.

Main Idea

• A joint is a place where two bones or bone and cartilage come together.
• The study of joints is called arthrology.
• Joints are classified as:

Core Concept

• **Joint** = articulation
• Arthrology = study of joints
• Fibrous joints = immoveable
• Cartilaginous joints = slightly moveable
• Synovial joints = freely moveable
• Suture = fibrous joint in skull
• Pubic symphysis = cartilaginous joint
• Hinge joint = synovial joint (elbow, knee)
• Ball-and-socket joint = synovial joint (shoulder, hip)

Detailed Explanation

Joints

• A joint or articulation is a place where two bones or bone and cartilage come together.
• The scientific study of the structure and function of joints is called arthrology.
• The joints are classified as fibrous joints (immoveable), cartilaginous joints (slightly moveable) and synovial joints (freely moveable).