Answer:
carbon dioxide passes from the blood into the alveoli and is then exhaled. Oxygenated blood travels from the lungs through the pulmonary veins and the cycle goes on every time you breath or inhale you inhale oxygen into your blood cells.
Explanation:
A. First degree burn: Submerge in cold water for 10 minutes.
First degree burns are characterized by redness and some swelling. You can treat it by submerging affected area in water, or just leave it under running water. Do not put ice!
B. Second degree burn: Elevate burned area
Second degree burns are usually characterized by the formation of blisters. You can submerge them in water as well for about 20 minutes. But to control inflammation, raise the affected area above the heart if possible.
C. Third degree burn: Avoid submerging in water
Third degree burns are the most severe burns. The first two layers of the skin are destroyed. You should avoid submerging these type of wounds in water. Instead, use a cold cloth and pat the area but only as a last result, if immediate help is not possible. But as much as possible, rush the patient to the hospital ASAP.
