Questions: Select all that apply What hormones are secreted by chromaffin cells of the adrenal medulla? Epinephrine Norepinephrine Aldosterone Thyroxine

Select all that apply What hormones are secreted by chromaffin cells of the adrenal medulla? Epinephrine Norepinephrine Aldosterone Thyroxine
Transcript text: Select all that apply What hormones are secreted by chromaffin cells of the adrenal medulla? Epinephrine Norepinephrine Aldosterone Thyroxine
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Solution

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The hormones secreted by chromaffin cells of the adrenal medulla are:

  • Epinephrine
  • Norepinephrine

Explanation for each option:

  1. Epinephrine: Correct. Chromaffin cells in the adrenal medulla secrete epinephrine (also known as adrenaline), which plays a crucial role in the body's fight-or-flight response.

  2. Norepinephrine: Correct. Chromaffin cells also secrete norepinephrine (noradrenaline), which works alongside epinephrine in the fight-or-flight response and helps regulate blood pressure.

  3. Aldosterone: Incorrect. Aldosterone is a hormone produced by the adrenal cortex, not the adrenal medulla. It helps regulate sodium and potassium levels in the blood.

  4. Thyroxine: Incorrect. Thyroxine (T4) is a hormone produced by the thyroid gland, not the adrenal medulla. It plays a significant role in regulating metabolism.

In summary, the correct answers are Epinephrine and Norepinephrine.

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