Shingles, also known as zoster or herpes zoster, is a painful skin rash caused by the same virus responsible for chicken pox: the varicella zoster virus. Even if you had chicken pox in the past, you can still contract shingles.aused by the herpes virus, the earliest symptoms of both conditions include headache, fever, a general feeling of malaise, sore throat and swelling of the face. Chicken pox is very common in children, being actually a children's disease. It is very contagious and it is actually nothing but a viral infection.
The pulmonary vein is the vessel transporting oxygen-rich blood from the lungs to the left atrium. A common misconception is that all veins carry de-oxygenated blood. It is more appropriate to classify veins as vessels carrying blood to the heart.
The heart pumps oxygen filled blood to the body and pumps carbon dioxide filled blood to the lungs. Carbon dioxide filled blood enters the superior and inferior vena cava and enters the right atrium. The blood moves to the right ventricle and it is pumped to the lungs through the pulmonary artery to receive oxygen. The blood then returns to the left atrium of the heart through the pulmonary vein rich with oxygen. It goes to the left ventricle and pumps it to the aorta then to the rest of the body.