Which structure is closely related to the adductor longus muscle?

The profunda femoris artery, also known as the deep femoral artery, is closely related to the adductor longus muscle. This artery is a major branch of the femoral artery and it supplies blood to the deep structures of the thigh, including the muscles that are involved in adduction, such as the adductor longus.

The profunda femoris artery runs posteriorly to the adductor longus, providing its supply of oxygenated blood. This anatomical relationship is crucial in understanding the vascular supply to the muscles of the medial compartment of the thigh.

The superficial femoral artery primarily supplies the anterior compartment of the thigh and is not as directly associated with the adductor longus. A blood vessel that crosses above the adductor longus does not convey the same relevance as the profunda femoris artery in terms of proximity and specific vascular supply. The great saphenous vein primarily runs along the medial aspect of the limb and, while it has anatomical importance, it does not have a close functional relationship with the adductor longus muscle itself in the same way that the profunda femoris artery does.