The susceptibility of the respiratory tract to histamine and acetylcholine during the sensitization of the body.
D000109:Acetylcholine / Q000494:pharmacology*; D006632:Histamine / Q000494:pharmacology*; D006801:Humans; D006967:Hypersensitivity; D007154:Immune System Diseases; D009424:Nervous System Physiological Phenomena; D012143:Respiratory Physiological Phenomena; D012137:Respiratory System / Q000502:physiology*
D006632:Histamine; D000109:Acetylcholine
ACETYLCHOLINE/pharmacology; ALLERGY/experimental; HISTAMINE/pharmacology; RESPIRATORY SYSTEM/physiology