How does my hip work?
The hip is one of the main weight-bearing joints in your body. It consists of two main parts:
- A ball (femoral head) at the top of your thighbone (femur)
- A rounded socket (acetabulum) in your pelvis
Bands of tissue called ligaments connect the ball to the socket, and help keep the ball and socket steady. A smooth, tough material (called articular cartilage) cushions the bones and helps them move easily. This covers the surfaces of the ball and socket.
A thin, smooth tissue liner (called synovial membrane) covers the rest of the surfaces of the hip joint. This creates a small amount of fluid that acts as a lubricant, keeping the bones in the hip joint from rubbing against each other.