amphiarthrosisokra

Amphiarthrosis is a type of cartilaginous joint characterized by limited movement. Unlike synarthroses, which are immovable, or diarthroses, which are freely movable, amphiarthroses allow for a degree of flexibility and shock absorption. The bones in an amphiarthrosis are connected by fibrocartilage or hyaline cartilage. This type of joint is found in several locations within the body.

One prominent example of an amphiarthrosis is the pubic symphysis, located between the two pubic bones of the pelvis. This joint is crucial for stability, particularly during pregnancy and childbirth. Another significant amphiarthrosis is the intervertebral disc, which connects the vertebrae of the spine. These discs, composed of fibrocartilage, act as shock absorbers and permit slight movements between adjacent vertebrae, contributing to the overall flexibility of the spinal column.

The structure of amphiarthroses provides a balance between mobility and stability. While not as mobile as synovial joints, they offer more movement than fibrous joints. The presence of cartilage allows for some compression and resilience, making them well-suited for weight-bearing and moderate motion. The limited range of motion is a defining characteristic, distinguishing them from other joint classifications.