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Which region of the highlighted organ prolongs and amplifies the sympathetic (emergency) response?

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The highlighted organ (although not provided) may be the adrenal medulla.

The adrenal medulla has two components, first is the adrenal cortex which has three layers: (1) zona glomerulosa, (2) zona fasciculata, and (3) zona reticularis. These function to produce mineralocorticoids, glucocorticoids, and sex steroids respectively. The adrenal medulla, on the other hand, is a modified symphatetic ganglia that secretes cathecolamines (i.e. epinephrine, norepinephrine) that amplifies the symphatetic response (flight or flight).
User John Krueger
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