A decrease in the angle between the femur and the tibia because of the...
Flexion Movement
Flexion is a type of movement that reduces the angle between two body parts. In the case of the knee joint, flexion occurs when the angle between the femur and tibia decreases as the knee bends.
Knee Joint
The knee joint is a hinge joint that connects the thigh bone (femur) to the shinbone (tibia). It is one of the largest and most complex joints in the human body and is responsible for supporting the weight of the body and facilitating movement.
Angle between Femur and Tibia
The angle between the femur and tibia changes as the knee moves. When the knee is fully extended, the angle between the femur and tibia is around 180 degrees. As the knee bends, the angle decreases, and when the knee is fully flexed, the angle is around 135 degrees.
Movement of the Knee
The movement of the knee is controlled by a complex system of ligaments, tendons, and muscles. When the knee flexes, the quadriceps muscles at the front of the thigh contract, pulling the patella (kneecap) and tibia towards the femur. At the same time, the hamstrings muscles at the back of the thigh relax, allowing the knee to bend.
Conclusion
In conclusion, a decrease in the angle between the femur and tibia because of the movement of the knee is an example of flexion movement.