PHGY 210 Lecture Notes - Lecture 4: Adipose Tissue, Blood Sugar, Hyperfunction
28 Nov 2015
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Document Summary
Characterized by failure of the adrenal cortex to produce adrenocortical hormones. May involve total destruction of the gland. Mostly due to atrophy of the adrenal glands due to tuberculosis and involves medulla as well as the cortex. Characterized by hyperplasia of the adrenal cortex due to increased circulating levels of acth. Excessive production of glucocorticoids as well as increased production of mineralocorticoids. 99% of pancreas is exocrine and secretes the digestive enzymes. However, scattered within the exocrine pancreas are small endocrine structures, the islets of. Langerhands compact mass of cells with good vascularization. About 60% of the cells of the islets of langerhans are known as beta-cells synthesize insulin. About 25% of the cells of the islets are alpha-cells synthesize glucagon (there are also smaller numbers of other types of cells) Insulin and glucagon: small protein hormones and both control of glucose concentration in blood.
