A freely movable joint is called what?

A freely movable joint is called what?

• A. Diarthrosis
• B. Synarthrosis
• C. Amphiarthrosis
• D. Syndesmosis

Answer: (A)

Freely movable joints are diarthroses, a type of synovial joint that has a joint cavity, articular cartilage, a synovial membrane with fluid, and a capsule reinforced by ligaments. This setup allows a wide range of motion, as seen in joints like the knee, shoulder, and elbow. Other terms describe joints with little or no movement: synarthrosis are immovable (like skull sutures); amphiarthrosis are slightly movable (such as the pubic symphysis or intervertebral joints); and syndesmosis is a fibrous joint held together by ligaments with limited movement. So diarthrosis best fits the idea of a freely movable joint.

Freely movable joints are diarthroses, a type of synovial joint that has a joint cavity, articular cartilage, a synovial membrane with fluid, and a capsule reinforced by ligaments. This setup allows a wide range of motion, as seen in joints like the knee, shoulder, and elbow. Other terms describe joints with little or no movement: synarthrosis are immovable (like skull sutures); amphiarthrosis are slightly movable (such as the pubic symphysis or intervertebral joints); and syndesmosis is a fibrous joint held together by ligaments with limited movement. So diarthrosis best fits the idea of a freely movable joint.