How many degrees of movement does the knee joint generally have?

The knee joint is primarily a hinge joint, which allows for flexion and extension movements. The general range of motion for the knee in terms of flexion can reach up to approximately 135 degrees in a healthy individual. This flexion range is measured from the full extension position (0 degrees) to the maximum point of flexion.

While there may be slight variations in range due to individual differences, injuries, or anatomical variations, the 135-degree benchmark is widely recognized as the standard for normal functional movement. The remaining degrees in the answer choices go beyond the normal and functional range of knee flexion, thus emphasizing why the selected choice is the most accurate based on typical human anatomy and movement capabilities.