Final answer:
The anterior superior iliac spine (ASIS) is the pelvic landmark used to evaluate pelvic alignment and measure leg lengths, making it an essential point for medical assessments.
Step-by-step explanation:
The correct option : c
The bony landmark used to assess pelvic alignment and measure leg lengths is the anterior superior iliac spine (ASIS). When standing in an anatomical position, the ASIS and the pubic tubercles lie in the same vertical plane, which assists in determining the levelness of the pelvis and leg length discrepancy. The ASIS is a significant point because it can be palpated easily at the anterolateral hip, providing a consistent reference for various measurements and assessments in the medical and allied health fields.
Anterior termination of the iliac crest and is a prominent and easily identifiable bony landmark. In contrast, the anterior inferior iliac spine (AIIS) serves as an attachment point for thigh muscles, the posterior superior iliac spine (PSIS) is noted for the dimple it creates on the lower back, and the posterior inferior iliac spine (PIIS) is located near the roughened auricular surface of the ilium. These landmarks, although important, do not serve the same functional purpose in alignment assessments as the ASIS does.