Questions: Epinephrine and norepinephrine are secreted by the Multiple Choice adrenal medulla adrenal cortex thyroid parathyroid

Epinephrine and norepinephrine are secreted by the Multiple Choice adrenal medulla adrenal cortex thyroid parathyroid
Transcript text: Epinephrine and norepinephrine are secreted by the $\qquad$ Multiple Choice adrenal medulla adrenal cortex thyroid parathyroid
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Solution

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The answer is the first one: adrenal medulla.

Explanation for each option:

  • Adrenal medulla: This is the correct answer. The adrenal medulla is the inner part of the adrenal glands and is responsible for secreting the hormones epinephrine (adrenaline) and norepinephrine (noradrenaline). These hormones play a crucial role in the body's fight-or-flight response.
  • Adrenal cortex: This is incorrect. The adrenal cortex is the outer part of the adrenal glands and it secretes different hormones, such as cortisol, aldosterone, and androgens, but not epinephrine or norepinephrine.
  • Thyroid: This is incorrect. The thyroid gland is located in the neck and produces thyroid hormones (thyroxine and triiodothyronine) that regulate metabolism, but it does not secrete epinephrine or norepinephrine.
  • Parathyroid: This is incorrect. The parathyroid glands are small glands located behind the thyroid gland and they produce parathyroid hormone (PTH), which regulates calcium levels in the blood, but they do not secrete epinephrine or norepinephrine.

Summary: Epinephrine and norepinephrine are secreted by the adrenal medulla.

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