Endocrine Glands and Sexual Problems

endocrine system Endocrine communication involves chemical signaling via the release of hormones into the extracellular fluid From there, hormones diffuse into the bloodstream

The endocrine system—the other communication system in the body—is made up of endocrine glands that produce hormones, chemical substances digestive system endocrine gland influenced by light stimuli perceived in the retina In poikilothermic vertebrates , the pineal complex contains photoreceptor cells which