Examlex
The bronchioles can constrict or dilate because of the ____________________ tissue in their walls.
Secondary Amine
An organic compound where two alkyl or aryl groups are attached to the same nitrogen atom, not including the hydrogen.
Nitrogen Atom
A chemical element with the symbol N and atomic number 7, it is a common element in the universe and essential for all known forms of life.
Amphetamines
A class of stimulant drugs used to enhance wakefulness and focus, especially in the treatment of ADHD and narcolepsy, but also used illicitly.
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