Sümfüüsid

Sümfüüsid refers to a type of cartilaginous joint where two bones are joined by fibrocartilage. This type of joint is characterized by its immobility or limited mobility, providing stability to the skeletal structure. Unlike synovial joints which are filled with fluid and allow for a wide range of motion, sümfüüsid are designed for strength and resistance.

Examples of sümfüüsid in the human body include the pubic symphysis, which connects the left and right pubic bones, and the intervertebral discs, which are located between adjacent vertebrae of the spine. These joints play a crucial role in maintaining structural integrity and absorbing shock. The pubic symphysis, for instance, allows for slight movement during childbirth. The intervertebral discs act as shock absorbers, protecting the spine from impact during activities like walking or running.

The composition of sümfüüsid is primarily fibrocartilage, a tough and fibrous connective tissue. This material provides both tensile strength and compression resistance, making these joints well-suited for their load-bearing functions. While generally stable, excessive stress or wear can lead to conditions like disc herniation in the case of intervertebral discs or pubic symphysis dysfunction.