pelvis

The bone surface is adorned with distinct landmarks that reflect its functional role, whether for muscle attachment, joint articulation, or the passage of blood vessels and nerves. This medical image illustrates various anatomical features across the femur, humerus, pelvis, and skull, categorized into processes, elevations or depressions, and openings. By examining these labeled structures, we can appreciate how bones are intricately designed to support movement, protect vital areas, and facilitate physiological processes, making them essential to the body’s overall framework.

The Q-angle, or quadriceps angle, is a critical measurement in human anatomy that quantifies the lateral deviation of the femur from the vertical line of the tibia, reflecting the alignment of the lower limb. Adult females typically exhibit a larger Q-angle due to their wider pelvis, which influences the biomechanics of the knee and hip joints. This article delves into the anatomical structure of the Q-angle, its physical implications, and its functional and clinical significance in the human body.