The answer is adrenal gland.
Hormones are chemical signaling
molecules secreted by glands, either endocrine or exocrine. Endocrine glands secrete hormones
directly into the bloodstream without using a duct,
unlike the exocrine glands. Endocrine
glands include pancreas, hypothalamus, pineal gland, pituitary gland, thyroid
gland, parathyroid gland, adrenal gland, ovaries, testes
