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.
An artery usually carries pure, filtered and clean blood away from the heart, to all the parts of the body with an exception of the pulmonary artery and the umbilical cord. As the arteries move away from the heart, they divide into smaller vessels. These thinner arteries are called arterioles.