BIO 211 Lecture Notes - Lecture 9: Parathyroid Gland, Vascular Smooth Muscle, Pineal Gland
4 Aug 2020
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Document Summary
Circulating hormones: hormones that pass into the blood stream and act on distant. Linger in the blood and exert their effects for a few minutes or a few hours. Are inactivated by the liver and excreted by the kidney. Local hormones: those that act locally without first entering the bloodstream. Ex: nitric oxide (no) released by endothelial cell which causes relaxation of nearby vascular smooth muscle, in turn causing vasodilation and increased blood flow. Autocrines: those that act on the same cell that secreted them. Paracrines: hormones that act on neighboring cells. Diabetes: passing freely through a system- nothing to actually do with glucose. Mellitus- honey lack of insulin makes our blood glucose higher than normal. Insipidus- no taste without adh water passes freely. Endocrine glands of the body that constitute the endocrine system. Pancreas (mixed gland- we have an endocrine and exocrine pancreas) Tissues that contain cells that secrete hormones but not considered endocrine glands exclusively.
