Endocrine System: What It Is, Function, Organs & Diseases

endocrine gland influenced by light stimuli perceived in the retina In poikilothermic vertebrates , the pineal complex contains photoreceptor cells which

You can't really point to any single organ as “the endocrine system,” because they're actually a family of glands that secrete hormones into the body

excretory system The endocrine system is made up of certain special glands and the hormones produced by those glands in the body The hormones are important for instructing

operating system The endocrine system is comprised of several glands The human brain contains the hypothalamus, pituitary, and pineal glands The neck includes the parathyroid