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16. The Endocrine System
Introduction to the Endocrine System
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Which hormone is secreted by the beta cells of the pancreas?
A
Cortisol
B
Glucagon
C
Somatostatin
D
Insulin
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Understand the role of the pancreas in the endocrine system. The pancreas is a gland that has both exocrine and endocrine functions. Its endocrine function involves the secretion of hormones directly into the bloodstream.
Identify the types of cells in the pancreas responsible for hormone secretion. The pancreas contains clusters of cells known as the islets of Langerhans, which include alpha, beta, delta, and PP cells.
Focus on the beta cells within the islets of Langerhans. Beta cells are specifically responsible for the production and secretion of insulin.
Learn about insulin's function. Insulin is a hormone that plays a crucial role in regulating blood glucose levels by facilitating the uptake of glucose into cells, thus lowering blood sugar levels.
Differentiate insulin from other hormones mentioned. Cortisol is a steroid hormone produced by the adrenal cortex, glucagon is secreted by alpha cells of the pancreas to raise blood glucose levels, and somatostatin is secreted by delta cells to inhibit the release of other hormones.
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