The iliac fossa, also known as the iliac impression, is an anatomical term that refers to a large, concave surface found on the inner side of the hip bone, specifically on the large, fan-shaped portion known as the ilium. The iliac fossa is located on the anterior aspect of the ilium, which is positioned between the anterior superior iliac spine (ASIS) and the anterior inferior iliac spine (AIIS).
This fossa is characterized by its smooth, shallow depression and is an important landmark in the pelvic region. The iliac fossa serves as an attachment site for various muscles, including the iliacus muscle, which aids in flexing and stabilizing the hip joint.
Furthermore, the iliac fossa is covered by a layer of connective tissue called the iliac fascia, and it plays a role in supporting the abdominal organs, specifically the intestines.
From a clinical perspective, the iliac fossa holds significance in surgical procedures, such as organ transplants and hernia repairs, as it provides access to the abdominal cavity. The iliopsoas muscle, which runs through the iliac fossa, also contributes to this clinical importance, as it can cause discomfort or pain if inflamed or injured.
To summarize, the iliac fossa is a concave surface on the inner side of the hip bone, located between the anterior superior and anterior inferior iliac spines. It serves as an attachment site for muscles, supports the abdominal organs, and is relevant in various surgical procedures.
