<prompt> schultz dale phenomenon the following is true statements :anaphylaxis in vitrotest to detect atopytype v hypersenstivity reactiontest for allergic contact dermatitis  <response>: Schultz-Dale reaction A method for demonstrating anaphylactic hypersensitivity outside the body by suspending an excised intestinal loop or uterine strip from a sensitized animal in an oxygenated, physiological salt solution; addition of the proper allergen causes contraction of the smooth muscle. TYPE I Hypersensitivity Type I hypersensitivity -- immediate or anaphylactic hypersensitivity Immediate hypersensitivity is mediated by IgE The primary cellular component in this hypersensitivity is the mast cell or basophil The reaction is amplified by neutrophils and eosinophils ref ; anantharayana 9th ed 