Which vessels can be easily seen on the dorsal surface of the hand?

The veins are the vessels that can be easily seen on the dorsal surface of the hand. This visibility is primarily due to their location and proximity to the surface of the skin, where they often appear as blue or purple lines under the skin. Veins are responsible for returning deoxygenated blood back to the heart, and their arrangement in the hands allows them to be more prominent than other types of blood vessels.

The other types of vessels, such as arteries, are generally deeper within the tissues and are not as visible at the surface. Nerves, while also essential structures, do not typically present a visual appearance similar to veins and are mostly located deeper under the skin, making them difficult to see. Capillaries, the smallest of the blood vessels, are primarily responsible for the exchange of gases and nutrients at the tissue level and are not visible on the skin’s surface. Thus, the visibility of veins on the dorsal surface of the hand distinguishes them as the correct answer in this context.