ANATOMY

Detailed explanation-1: -Endocrine glands do not have ducts. Their secretions (hormones) are secreted into the blood stream.

Detailed explanation-2: -Ducted glands secrete their products through well defined ducts like liver, salivary, sweat glands etc. Whereas Ductless glands which are also known as internally secreting glands or endocrine glands secrete their products or hormones directly into the blood stream in response to instructions from the brain.

Detailed explanation-3: -The endocrine glands in the human body are hypothalamus, testes, ovary, pancreas, thyroid, pituitary, pineal, parathyroid, thymus and adrenal gland. The liver does not secrete any hormone.

Detailed explanation-4: -Exocrine glands secrete their products directly into ducts, whereas endocrine glands release their products (hormones) into the bloodstream. Specific hormones influence the growth and function of certain target tissues. Hormones can be proteins or smaller polypeptides, amines, steroids, or fatty acid derivatives.