Barstow is a city in San Bernardino County, California, United States. The population was 22,639 at the 2010 census, up from 21,119 at the 2000 census. Barstow is located 55 miles (89 km) north of San Bernardino. Barstow is a major transportation center for the Riverside-San Bernardino metropolitan area. Several major highways including Interstate 15 and Interstate 40 converge in the city. It is the site of a large rail classification yard, belonging to the BNSF Railway.
1 Capillaries are the smallest blood vessels. 2  They connect to the arteries and the veins. 3  Capillaries are extremely small tubes that average 6 to 8 micron in size; they are too small to see without a microscope.xygen rich blood is pumped out of the left ventricle of the heart into the aorta, which is the largest artery in the body. The oxygen rich blood travels through the aorta into smaller arteries. The capillaries sit between the arteries and the veins, connecting the two together and acting as an exchange stop.
Arteries carry blood away from the heart and the veins bring blood to the heart. Arteries carry blood with more press â¦ ure than veins, so they are thicker and more muscular. Veins have something arteries do not have and that is valves.6 people found this useful.he arteries carry de oxygenated blood out of the heart into the lungs and the veins bring oxygenated blood into the heart, ready for circulation of the body. The difference i â¦ s that arteries carry blood away from the heart and veins carry blood towards the heart. 13 people found this useful.