What defines a cartilaginous joint?

A cartilaginous joint is defined as a joint that allows limited movement. This type of joint is primarily characterized by the presence of cartilage that connects the bones, providing stability while still permitting a degree of flexibility. Cartilaginous joints can be found in places such as the spine, where the vertebrae are separated by intervertebral discs made of cartilage, allowing for slight movement and cushioning while maintaining the structural integrity of the spine.

The other options incorrectly describe different types of joints. A fixed joint that does not allow movement would refer to a fibrous joint, such as those found in the skull, where bones are fused together. A joint that allows free movement describes a synovial joint, which includes most of the joints in the limbs and provides a wider range of motion. Finally, a joint that connects two different types of tissue does not specifically define any of the joint categories and is too vague to represent cartilaginous joints accurately. Thus, the correct answer accurately reflects the characteristics of cartilaginous joints and their function in the skeletal system.