Multiple Choice
How does antidiuretic hormone (ADH) affect the permeability of the collecting ducts to water?
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16. The Endocrine System
Introduction to the Endocrine System
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Which gland or organ has cells that release glucagon?
A
Pancreas
B
Adrenal gland
C
Pituitary gland
D
Thyroid gland
Verified step by step guidance1
Begin by identifying the primary function of glucagon. Glucagon is a hormone that plays a crucial role in regulating blood glucose levels by promoting the release of glucose into the bloodstream.
Understand which organ is responsible for blood glucose regulation. The pancreas is the key organ involved in maintaining blood glucose levels through the secretion of hormones like insulin and glucagon.
Recognize the specific cells within the pancreas that release glucagon. These are the alpha cells located in the islets of Langerhans.
Differentiate the pancreas from other glands listed in the options. The adrenal gland, pituitary gland, and thyroid gland have different functions and do not release glucagon.
Conclude that the pancreas is the correct answer, as it contains the alpha cells responsible for glucagon secretion, which is essential for glucose metabolism.
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