Transfer of chemical compounds such as hormones and growth factors from secreting glands via blood to cells.
Relating to the endocrine glands or the hormones they secrete.
Ductless; refers to activities and hormonal secretions of ductless glands.
A kind of organ which produces and secretes into the body itself, generally into the blood, chemical substances called hormones which have effects on one or more other organs. The pancreas, which secretes insulin (a hormone involved in the body’s use of sugar, and in diabetes), is an endocrine organ.
Relating to the endocrine glands and their secretions.