Hormone

Hormones are chemical messengers in a body. They travel through the bloodstream to enter the tissues and organs. Their chemical process is slow and their stimulation or production in body influences different processes such as growth and decelopment, metabolism, mood, sexual function, etc.
Endocrine glands are a special group of cells that are responsible for producing hormones. The endocrine glands are pituitary, pineal, thymus, adrenal, thyroid glands and pancreas. In addition, sexual hormones are produced in testes and ovaries of a species.
Category:Biology
Category:Human Body