High blood glucose, also called blood sugar, can harm your baby during the first weeks of pregnancy, even before you know you are pregnant. If you have diabetes and are already pregnant, see your doctor as soon as possible to make a plan to manage your diabetes.
These are the only veins in the body that carry fresh, oxygenated blood. Blood leaves the heart from the left ventricle through the artery called the aorta. The aorta has several branches into other arteries that are carrying blood away from the heart and to the body tissues.
The heart and blood vessels (arteries, capillaries, and veins) are called the cardiovascular system. The cardiovascular system carries blood throughout the body. The heart pumps blood through blood vessels called arteries and then through smaller blood vessels called capillaries to each organ and tissue in the body.The blood feeds each organ and tissue.he heart pumps blood through blood vessels called arteries and then through smaller blood vessels called capillaries to each organ and tissue in the body. The blood feeds each organ and tissue.