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FAST REVISION
Dental Materials
The elastic range of a wire is the amount of deflection it can withstand before permanent deformation occurs. It is the difference between the elastic limit and the ultimate tensile strength.
Physiology
Answer: 2) The primary neurotransmitter involved in the sympathetic nervous system's response at the neuromuscular junction is norepinephrine, which acts on alpha and beta-adrenergic receptors.