Multiple choice

ACTH is secreted by

  1. pineal body

  2. anterior lobe of the pituitary gland

  3. posterior lobe of the pituitary gland

  4. thymus

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Adrenocorticotropic hormone (ACTH) is specifically produced by corticotrophs in the anterior lobe of the pituitary gland (adenohypophysis). The posterior lobe (neurohypophysis) stores and releases oxytocin and ADH produced by the hypothalamus. The pineal body produces melatonin, and the thymus produces thymosin involved in immune development.

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