The two basic types of joints are immovable joints and movable joints.
Immovable Joints
Immovable joints, as their name suggests, do not allow any movement between the bones they connect. These joints provide stability and protection to the structures they surround.
- Definition: Two or more bones are in close contact, but no movement can occur.
- Example: The sutures of the skull are classic examples of immovable joints. These joints tightly connect the bones of the cranium, protecting the brain.
- Purpose: Primarily for structural support and protection.
Movable Joints
Movable joints allow for a wide range of motion. These joints are essential for physical activity and flexibility.
- Definition: Joints that allow a range of motion between connected bones.
- Purpose: Primarily to enable movement and flexibility.
- Function: These joints facilitate diverse movements, such as bending, rotating, and extending.
Summary Table of Joint Types
Joint Type | Movement Allowed | Primary Purpose | Example |
---|---|---|---|
Immovable Joints | None | Structural support and protection | Skull sutures |
Movable Joints | Wide range | Enable movement and flexibility | Elbow, knee, shoulder |