What is the name of the artery that supplies blood to the foot and is located laterally to the large tendon of the big toe?

The dorsalis pedis artery is the correct answer because it is a continuation of the anterior tibial artery and supplies blood to the dorsal (top) aspect of the foot. Its anatomical location is key; it runs down the front of the ankle and can be palpated just lateral to the tendon of the big toe (the extensor hallucis longus tendon). This artery is important for providing oxygenated blood to the tissues and structures of the foot, and its pulse can often be assessed in clinical settings to evaluate blood flow.

In contrast, the femoral artery is a major vessel in the thigh, supplying blood to the leg and foot but does not directly serve the foot. The posterior tibial artery also plays a significant role in supplying blood to the region but primarily serves the plantar aspect (bottom) of the foot and is not positioned in relation to the big toe tendon. The anterior tibial artery does give rise to the dorsalis pedis, but it is not located in the same position relative to the big toe tendon as the dorsalis pedis artery.