Which term describes the depressed area of the abdominal wall near the thigh?

The term that describes the depressed area of the abdominal wall near the thigh is inguinal. This region is specifically located where the lower abdomen meets the upper thigh and is associated with the inguinal ligament, which runs from the pubis to the anterior superior iliac spine. The inguinal region is clinically significant as it is the site where inguinal hernias can occur, and it also serves as a passageway for structures traveling between the abdomen and the lower limbs, such as blood vessels and nerves.

The other terms do not pertain to this specific area. The lumbar region refers to the lower back, the mammary region pertains to the breast area, and the gluteal region relates to the buttocks. Each of these regions has distinct anatomical features and purposes, but none are located in the area defined by the question.