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The hormone that dominates the alarm phase of the stress response is _________________________.?

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  • 9 years ago
    Favorite Answer

    adrenaline

    Epinephrine (also known as adrenaline or adrenalin) is a hormone and a neurotransmitter. Epinephrine has many functions in the body, regulating heart rate, blood vessel and air passage diameters, and metabolic shifts; epinephrine release is a crucial component of the fight-or-flight response of the sympathetic nervous system. In chemical terms, epinephrine is one of a group of monoamines called the catecholamines. It is produced in some neurons of the central nervous system, and in the chromaffin cells of the adrenal medulla from the amino acids phenylalanine and tyrosine.

    Source(s): Read more about it: http://en.wikipedia.org/wiki/Epinephrine
  • Anonymous
    9 years ago

    The protein hormone, adrenaline.

  • Anonymous
    9 years ago

    epinephrine/adrenaline (part of sympathetic "fight or flight" response) secreted by adrenal gland

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