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.
Once the blood has been oxygenated, it returns to the heart via the pulmonary veins. Then, the heart circulates this newly oxygenated blood throughout the body. In this way, pulmonary veins are different from other veins in the body, which are used to carry deoxygenated blood from the rest of the body back to the heart. The left pulmonary veins connect with the left lung, and the lungs themselves are filled with hollow air sacs called alveoli. This is where oxygen is removed from inhaled air ...