內(nèi)分泌總論英文ppt課件(已修改)
2024-12-20 03:24 本頁面
【正文】 Principles of Endocrinology Department of Endocrinology First Affiliated Hospital Sun Yetsen University Cao Xiaopei Endocrine ? hormones from specialized cells in glands or tissue are secrected and transported in the blood to a distant site of action(classic “endocrine” effect) ? or act directly upon nearby cells which is called “paracrine” activity. Exocrine ? products from glands are secrected externally or into a lumen, such as the gastrointestinal tract. Metabolism an function growth development reproduction Maintainance of homostasis of internal environment Effects of Endocrine System Hormone Chemical messengers produced by a variety of specialized secretory cells Chemical signals secreted into the blood stream that act on distant tissues, usually in a regulatory fashion Sources of Hormones ? Hormone secretory cells (found around human body) ? Endocrine glands ? Tissues or cells of endocrine function: neurosecretory cells in hypothalamus, hormone secretory cells/an cells with endocrine function in GI tract, kidney, heart, lung, etc Classification of Hormone ? Amino acid derivatives: dopamine, catecholamines, thyroid
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號-1