Hemoglobin E trait is rare. It happens most often among people with a Thai, Cambodian, Vietnamese, or Laotian background. It can also happen in people of Turkish, Asiatic Indian, Chinese, and Filipino descent. If you inherited the hemoglobin E mutation from just 1 of your parents, you typically won't have any symptoms.
Three types of blood vessels carry blood from your lungs to every cell in your body. 1  Arteries-Arteries have muscular walls that pump oxygen-filled blood away from your heart to the tissues and organs, like the brain, kidneys and liver.2  Arteries get smaller as they get further from your heart.hree types of blood vessels carry blood from your lungs to every cell in your body. 1  Arteries-Arteries have muscular walls that pump oxygen-filled blood away from your heart to the tissues and organs, like the brain, kidneys and liver.
Arteries carry oxygenated blood away from the heart, to the cells that need them. Veins carry blood containing carbon dioxide back to the heart after the oxygen has been given to the cells. Capillaries are the thinnest arteries and veins.They are only one cell wide. As the blood cell passes through the very thin capillary, the cells on either side are given oxygen and carbon dioxide is taken from them. Therefore, the capillaries connect the arteries and veins.apillaries are the thinnest arteries and veins. They are only one cell wide. As the blood cell passes through the very thin capillary, the cells on either side are given oxygen and carbon dioxide is taken from them.