ANATOMY

Detailed explanation-1: -Endocrine glands are ductless glands of the endocrine system that secrete their products, hormones, directly into the blood. The major glands of the endocrine system include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.

Detailed explanation-2: -Endocrine glands are ductless glands and release the substances that they make (hormones) directly into the bloodstream.

Detailed explanation-3: -Endocrine glands are also known as the ductless glands because of the fact that their secretions are released directly into the blood, not to any tubes or ducts.

Detailed explanation-4: -The endocrine glands do not have ducts to carry their product to a surface. They are called ductless glands.

Detailed explanation-5: -Compare and contrast endocrine and exocrine glands. Endocrine glands are ductless. They release their secretion into the surrounding fluid, from which it enters the bloodstream or lymph to travel to distant cells.