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Define vasoconstriction and vasodilation. What is the mechanism of regulation?
Nitrogen Atom
A chemical element with symbol N and atomic number 7, constituting a key part of living organisms' molecules, such as DNA and proteins.
Atomic Number
The number of protons in the nucleus of an atom, which determines the chemical element's identity, and is symbolized as Z.
Uncharged
A state of a particle or object where it has no electrical charge; neutral.
Sharing Electrons
A chemical bond process where two atoms share pairs of electrons to achieve a stable electron configuration.
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