Veterinary Drug Handbook (VDH) is the reference veterinarians turn to when they want an independent source of information on the drugs that are used in veterinary medicine today.

Alveolus

Microscopic sac-like structures within the lung. The airways terminate in these sac-like structures. When blood in the lung contacts the alveoli, the blood takes up oxygen and empties waste gases that will be removed during breathing.
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