Cartilaginous joint

Cartilaginous Joint

Diagram of cartilaginous joints

A cartilaginous joint is a type of joint where the bones are entirely joined by cartilage, either hyaline cartilage or fibrocartilage. These joints allow more movement between bones than a fibrous joint but less than the highly mobile synovial joint.

Types of Cartilaginous Joints

Cartilaginous joints are classified into two types:

Synchondroses

Synchondroses are cartilaginous joints where the bones are joined by hyaline cartilage. These joints are typically found in the growth plates of children and adolescents, such as the epiphyseal plates in long bones. As the individual matures, these synchondroses ossify and become synostoses.

Symphyses

Symphyses are cartilaginous joints where the bones are joined by fibrocartilage. These joints are found in areas requiring strength and flexibility, such as the pubic symphysis and the intervertebral discs of the spinal column.

Function

Cartilaginous joints serve to connect bones while allowing limited movement. They provide stability and support, particularly in the axial skeleton. The fibrocartilage in symphyses acts as a shock absorber, distributing loads across the joint.

Clinical Significance

Cartilaginous joints can be affected by various conditions, such as arthritis, which can lead to pain and reduced mobility. Disorders of the intervertebral discs, such as herniated discs, can also impact the function of these joints.

Related Pages

• Joint
• Fibrous joint
• Synovial joint
• Hyaline cartilage
• Fibrocartilage