Both arteries and veins contain three distinct layers. The innermost layer, which is immediately in contact with the blood, is formed of stretchy tissue. The middle layer is composed of muscular tissue, which assists blood vessels in maintaining their form. Lastly, the outer layer is also elastic, which enables vessels to expand and contract easily in response to changes in blood flow.
Arteries and veins (also termed blood vessels) are muscular tubes through which your blood flows. Blood is carried away from the heart by arteries to the rest of the body. Veins return blood to the heart.   The superior and inferior vena cava are your major veins. Your superior vena cava is responsible for transporting blood from your upper body to your heart. Your inferior vena cava transports blood from all locations underneath your heart. 

References:
Brennan, D. (2021, November 27). The Difference Between Arteries and Veins. WebMD. Retrieved March 27, 2022, from https://www.webmd.com/heart/difference-between-arteries-and-veins
Mescher, A. (2010). Junqueira’s Basic Histology Text & Atlas (12th ed.). Mc Graw Hill.