Multiple choice

Which one of the following does not secrete any hormone?

  1. Thyroid

  2. Ovary

  3. Testes

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

The spleen is a lymphatic organ involved in filtering blood, recycling old red blood cells, and supporting immune function - it does NOT produce hormones. The thyroid gland secretes thyroxine (T4) and triiodothyronine (T3), the ovaries produce estrogen and progesterone, and the testes produce testosterone. All options except the spleen are endocrine glands with well-defined hormonal secretions.

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