anterior crucial ligament(ACL) and posterior crucial ligament(PCL) are two major ligaments in the knee that work together to provide stability in the knee. they cross each other and form an X which allows the knee to flex and extend without side to side movement.
Collateral ligaments
Internal or external to what? The knee joint? There are a number of knee ligaments e.g. anterior and posterior cruciate ligaments are internal to the knee joint but the medial and lateral collateral ligaments are external to the knee joint
It can make the joint unstable.
The Ligaments
the cruciate ligaments
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The knee consists of four main ligaments. Ligaments help the knee by providing support and stability when it is moved in various positions such as when bending and stretching the leg.
The knee itself is made of ligaments cartilage and bone, and the kneecap is made of bone.
The structures that adds stability to the knee joint are:TendonsLigamentsCartilageBoneTendonsQuadriceps tendonPatellar tendonLigamentsCollateral ligamentsCruciate ligamentsCartilageHyaline cartilageFibrous cartilageMenisciBonePatellaThe fibrous capsule around the knee joint is also partly made up from several of the tendons that connect the muscles around the knee which further helps stabilize the knee joint.Tendons and ligaments are very similar in structure and are made from mostly collagen, a wee bit of elastin and some few other compounds.
The patella, tibia, and femur are connected by 5 ligaments around the knee. Together they forma hinge joint.
In the knee joint you have synovial membrane. Medial co lateral and lateral co lateral ligaments. Inside the joint, you have anterior and posterior cruciate ligaments. and medial and lateral menisci. These all are supported by knee cap. It help to keep the soft tissue of the knee in position and there by helps in movement of the joint.
synovial flud