Knee Joints
By: Jane AndersonTotal Views: 184, Word Count: 505,
The knee joints are one of the most complex joints in the human body. The knee joints play an essential role in the physical activities like walking, running, jogging and such. An injury in the knee causes intense pain and physical immobility.
The knee joint is essentially made up of four main bones. The main knee joint consists of the femur, the large thigh bone attached to the tibia and the fibula, the bone that is present just below the tibia and runs parallel to it. The platella is the knee cap which mounts on the knee joint when the knee tends to bend.
The movement of the knee joint consists of mainly bending and straightening which is medically termed as flex and extend. The knee also has another motion which is a little rotational in nature. There are several knee muscles that move across the knee joints. There are mainly two types of muscles, quadriceps and the hamstrings. The muscles that are present in front of the knee are called the quadriceps muscles while those at the back side of the joint are called the hamstrings. There are also several ligaments that support and hold the joint in place.
The following are some knee joint features that include variety of ligaments, tendons and cartilage.
Collateral Ligaments – The collateral ligaments provide stability and support to the knee. They are present inside as well as outside of the knee capsule.
Cruciate Ligaments – These types of ligaments run across the knee capsule and provide strength to the joint.
The meniscus – The meniscus is a thick cartilage tissue that forms a smooth surface in between two joints, formed by the bones femur and tibia. The body weight on the knee rests on it.
Bursae – It is a fluid filled sack that surrounds the knee joint. The sack helps to reduce friction of the tendons. It acts as a gliding surface to reduce friction while walking or running.
Patella tendon – This tendon is attached to the front side of the tibia bone.
Apart from flex, extension and slight medial and lateral radial movement, the knee has locking and unlocking mechanisms too. The locking and unlocking mechanisms are based on the movement of the femoral condyles on the plain of the tibia bone. The ligaments, muscles and the menisci control the movement of the joint beyond its range of motion. This is known as the hinge joint and keeps the joint away from injury. The range of the movement called flexion is up to 60 degree. The medial rotation is limited to 10 degree while the lateral rotation is up to 30 degree.
Joints are very important part of our body which needs special care to avoid injury as it might incur severe pain and physical disability. You may take help of supplements like Joint Advance, which will keep your knee strong and active. The drug will effectively shield your joint from excess wear and tear.
About the Author
Jane Anderson is a renowned orthopedic surgeon based in USA. She has been attached to a reputed medical institute for the past few years. You may take the help of supplements in order to keep your joint strong and active. Consult a certified doctor before you select the right drug to maintain your joints.
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