A better question might be do I need an IV. If you know that you require an IV but do not know where to get one; then you should go to a hospital or urgent care center. Doctors' offices and infusion...
They terminate at the alveolar sacs which contain the alveoli. Here inhaled O2 is exchanged for exhaled CO2 via the pulmonary veins (which transport de-oxygenated blood with CO2), to the pulmonary...