BSC 109 Lecture Notes - Lecture 21: Adrenal Medulla, Bone Resorption, Adrenal Gland
17 Oct 2016
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Clicker: a five-point clicker was given to reward the students who attended class. Hyposecretion of adh results in inability to conserve water appropriately. Excessive growth hormone over a long period in adults. Treated by administration of gh throughout childhood. The pancreas has both exocrine and endocrine functions. Pancreatic hormones are involved in regulating blood glucose levels. Endocrine cells in islets of langerhans within the pancreas secrete the following three hormones: Causes breakdown of glycogen to glucose in the liver. Promotes uptake of sugar by cells in the liver, muscle, and adipose tissue. Promotes conversion of glucose into glycogen, proteins, fat. Inhibits secretion of glucagon and insulin, regulates other hormones. The adrenal glands comprise the cortex and medulla. Adrenal cortex: outer layer of adrenal gland. Adrenal medulla: inner layer of adrenal gland. Maintain blood glucose levels during prolonged fasting. Act on kidneys, promoting sodium reabsorption and potassium excretion. Enhance function of sympathetic nervous system (fight-or-flight response)
