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.
Systemic circulation is the part of the cardiovascular system which carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart.ulmonary Circulation. The circulation of the blood through the lungs. Pulmonary Veins. The veins that return the oxygenated blood from the lungs to the left atrium of the heart. Superior Vena Cava. The large vein that carries blood from the head, neck, arms, and chest to the heart.