Anatomy of the Knee – Learning More about the Knee


Whether you are an athlete or simply wish to know more information about how the body works, it’s interesting to take a look at the anatomy of the knee. As the body’s largest joint, the anatomy of the knee contains a detailed network of muscles and ligaments as well as four bones. Because injuries to the knee are some of the most common types of sporting injuries, it’s a good idea to learn a little bit more about the anatomy of the knee to prevent and treat these injuries. To begin with, there are four main bones that make up the knee. These include the femur, or thigh bone, the tibia or shin bone, the fibula or outer shin bone, and the patella, also known as the kneecap.

Anatomy of the KneeWhen the knee moves, these main movements consist of the femur, patella, and tibia working together. Further anatomy of the knee includes the articular cartilage, which helps reduce friction when the bones are moving at the same time. The patella is another key part of anatomy of the knee, and is set in a special indentation that lies at the lower end of the femur. This groove is called the intercondylar groove. Finally, the fibula is the long thin outer shin bone that travels alongside the tibia, making up the backside of the anatomy of the knee.

In addition to these four main bones, there is a joint capsule that is a vital part of anatomy of the knee. The joint capsule contains what is known as the synovial membrane, which is essential for healthy knee movement because it is responsible for providing nutrients to all of the other structures of the anatomy of the knee. When the knee moves, this causes force, creating the need for cushioning to protect the rest of the anatomy of the knee. The infrapatellar fat pad and bursa serve as this cushion.

Ligaments play a very important role in the anatomy of the knee, creating stability and flexibility. There are four main ligaments providing this stability, including the medial collateral, lateral collateral, anterior cruciate and posterior cruciate ligaments. Cartilage known as menisci surrounds the knee joint, forming even greater stability as part of the anatomy of the knee. Finally, there are two main muscle groups that form the anatomy of the knee, including the quadriceps and hamstrings. All of these parts work together to help the knee joint bend, move, and stay healthy.