Which bone is known as the medial and larger bone of the lower leg?

The tibia is known as the medial and larger bone of the lower leg. It runs along the inner side of the leg and is crucial for weight-bearing activities, serving as the primary support for the body's weight when standing, walking, or running. The tibia connects at the knee with the femur and at the ankle joint with the talus bone. Its larger size compared to the fibula is indicative of its role in supporting body weight and facilitating movement. Additionally, the tibia is an important site for attachment of muscles and ligaments that stabilize the ankle joint and assist in locomotion. The fibula, in contrast, is a slender bone located laterally, primarily functioning to provide muscle attachment and stability but not bearing weight directly. The other two choices, the patella and the humerus, are not pertinent to the lower leg; the patella is a bone that protects the knee joint, and the humerus is the bone of the upper arm.