Question

\(8^{th}\) and \(9^{th}\) rib costal cartilage forms which type of joint?

• A. Costochondral joint
• B. Interchondral joint
• C. Synovial joint
• D. Costovertebral joint

Answer 1

The Correct Option is C

The \(8^{th}\) and \(9^{th}\) rib costal cartilages are connected through an interchondral joint, which is typically a type of synovial joint. Synovial joints are characterized by the presence of a synovial cavity containing synovial fluid, which allows for a smooth and flexible range of motion. In the anatomy of the rib cage, interchondral synovial joints offer articulation between the adjacent costal cartilages, particularly between the lower ribs. This synovial connection enables the flexibility and movement required for respiratory mechanics in the chest.