Download 210 Diagram Endocrine Glands Stock Illustrations, Vectors &Their Functions Glands are the secretory organs in human anatomy They are saclike structures consisting of secretory tissue Exocrine glands Salivary, mucous, lachrymal, pancreatic, ceruminous glands ie sweat glands, and mammary glands Endocrine glands Pituitary, thyroid, parathyroid, adrenal, pinealThe endocrine system is a collection of glands that secrete various chemicals called hormones These are messages that pass signals through the blood to a targeted organ The receptor cells recognize these messages and act accordingly Hormones are divided into three classes based on their structure Steroids
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