What marks the point of termination for the femoral artery?

The point of termination for the femoral artery is at the opening of the adductor magnus muscle, where it transitions into the popliteal artery. This anatomical landmark is crucial for understanding the blood supply to the lower limb. The adductor magnus muscle has a significant role in this transition; when the femoral artery passes through an aperture in this muscle, it is effectively changing its designation from femoral to popliteal, which facilitates blood flow to the posterior compartment of the thigh and into the leg.

The other options refer to different anatomical structures which do not serve as the termination point for the femoral artery. For instance, the opening of the adductor longus muscle does not define the transition of the femoral artery and instead serves as a different anatomical landmark. Similarly, the sartorius muscle and the inguinal ligament indicate different relationships and functions in the anatomy of the thigh rather than marking the end of the femoral artery. Understanding these landmarks and their significance is essential for comprehending vascular anatomy and procedures involving the lower limb.