INBDE (Integrated National Board Dental Examination) 2025 – 400 Free Practice Questions to Pass the Exam

A synovial joint is a type of joint that contains a fluid-filled cavity between two bones, allowing for movement. Option C, the TMJ (temporomandibular joint) is a good example of this since it allows for movement in the jaw.

Option A, skull sutures, are fibrous joints that are composed of thin layers of connective tissue between the bones of the skull, and they do not contain a fluid-filled cavity or allow for movement.

Option B, intervertebral discs, are cartilaginous joints that have a little bit of movement but are mainly for shock absorption and stabilization. They do not have a fluid-filled cavity.

Option D, syndesmosis, is a type of fibrous joint and does not have a fluid-filled cavity. Instead, it has a dense connective tissue that connects two bones, allowing for limited movement.

Overall, option C is the best example of a synovial joint because it fits all the characteristics of this type of joint a fluid-filled cavity and allows for movement between two bones.