What special properties of blood vessels allow one to feel a pulse?

The special properties of blood vessels that allow one to feel a pulse include their elasticity and the rhythmic contraction of the heart. Arteries, particularly, have thick, elastic walls that expand and contract with each heartbeat, creating a pressure wave that travels through the vessel. This pressure wave can be felt at various points on the body, such as the wrist or neck, where arteries are close to the skin's surface. The ability to palpate this wave is what enables the sensation of a pulse.