Choose a historic steam train or one of our eco-friendly biodiesel locomotives for your train ride on the only Cog Railway East of the Rockies! Advance booking is recommended. Check our train schedule here. Download Cog RW Brochure [1.32 MB pdf]
There are two types of blood vessels in the circulatory system of the body: arteries that carry oxygenated blood from the heart to various parts of the body and veins that carry blood towards the heart for purification.hey are tiny branches of arteries that lead to capillaries and help maintain the pressure and blood flow in the body. Venous valves prevent blood from flowing in the opposite direction. Connective tissues make up the outermost layer of a vein which is also known as-tunica adventitia or tunica externa.
There are three different types of blood vessels: arteries (which carry blood away from the heart) veins (which carry blood toward the heart) and capillaries (which carry blood from arteries to veins).So veins are a type of vessel, but not the only type.eins have valves which make them unique, (as compared to arteries or capillaries). This is to prevent blood from going in the opposite direction. Since arteries lead away fr â¦ om the heart, the blood travels through using the pressure differential.