Unoxygenated blood from the head and neck region returns to the heart via the:

You are called to the scene of a patient who has just attempted suicide by ingesting detergent. You notice that the patient is coughing and has a hoarse voice. You suspect:

A) tracheal rupture. B) laryngeal edema. C) subcutaneous emphysema. D) nothing, this is a normal finding for this patient.

Study of the drug that would be most or least appropriate to use for a specific disease is known as:

A. pharmacy B. pharmacology C. toxicology D. pharmacodynamics