Which statement best describes fixed (immovable) joints?

Which statement best describes fixed (immovable) joints?

• A. They allow a large range of movement
• B. They are cushioned by cartilage
• C. They are connected by ligaments only
• D. They are fixed immovable joints

Answer: (D)

Fixed joints are fibrous joints where bones are joined by dense connective tissue, so they move very little or not at all. This is why sutures in the skull are immovable after growth completes. The key idea is that these joints lack a joint cavity and are tightly bound, not cushioned by cartilage or designed to allow movement. The description that matches this is that they are fixed immovable joints. The other statements reflect features of joints that do move or are structured differently: movement is limited or absent in fixed joints, cartilage cushioning is typical of moving joints, and ligaments aren’t the sole binding tissue here.

Fixed joints are fibrous joints where bones are joined by dense connective tissue, so they move very little or not at all. This is why sutures in the skull are immovable after growth completes. The key idea is that these joints lack a joint cavity and are tightly bound, not cushioned by cartilage or designed to allow movement. The description that matches this is that they are fixed immovable joints. The other statements reflect features of joints that do move or are structured differently: movement is limited or absent in fixed joints, cartilage cushioning is typical of moving joints, and ligaments aren’t the sole binding tissue here.