Multiple choice general knowledge science & technology

Which glands secrete hormones directly into the blood stream in response to instructions from the brain?

  1. Liver

  2. Sweat gland

  3. Exocrine glands

  4. Endocrine glands
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Endocrine glands secrete hormones directly into the bloodstream in response to instructions from the hypothalamus and pituitary gland. This is different from exocrine glands (like sweat glands) which secrete substances through ducts, making 'endocrine glands' the correct answer.

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