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FAST REVISION
General Medicine
Antihistamines, particularly H1 blockers, are used to counteract the vasodilatory and bronchoconstrictive effects of histamine in anaphylaxis.
Physiology
Answer: 2) The primary type of receptor involved in the sympathetic nervous system's response at the neuromuscular junction is the nicotinic receptor, which is an intrinsic ligand-gated ion channel.
General Microbiology
HLA class I antigens are the principal antigens that induce an immune response in the host against transplanted tissues.