Membership of the Royal Colleges of Surgeons (MRCS) Practice Exam

The roof of the adductor canal is formed by the sartorius muscle. This structure serves as a protective layer over the neurovascular contents running through the canal, which includes the femoral artery, femoral vein, and the saphenous nerve. The sartorius muscle is a long, thin muscle that runs obliquely across the anterior aspect of the thigh, connecting the anterior superior iliac spine to the medial aspect of the tibia.

In terms of the anatomy of the adductor canal, it is strategically located between the quadriceps femoris muscle group posteriorly and the sartorius anteriorly, with other structures such as the adductor longus and adductor magnus forming the medial and lateral borders, respectively. Understanding the layout of the muscles surrounding the adductor canal is crucial for surgical approaches and for diagnosing potential injuries to the structures passing through it.