Mention the name of germ layer from which adrenal cortex and pancreas are developed.(b) Explain the role of alpha (α) and delta (δ) cells of islets of Langerhans.

Q.21 (a) Mention the name of germ layer from which adrenal cortex and pancreas are developed.
(b) Explain the role of alpha (α) and delta (δ) cells of islets of Langerhans.

Doubtly Asked 28 Oct 2026 Board exam · March 2026 hsc 12th Save WhatsApp Report

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(a) Adrenal cortex develops from the mesoderm and the pancreas from the endoderm.

(b)

Alpha (α) cells secrete glucagon, a hyperglycaemic hormone. It stimulates glycogenolysis and gluconeogenesis in the liver and so raises the blood glucose level.
Delta (δ) cells secrete somatostatin (growth hormone inhibiting hormone). It inhibits the secretion of glucagon and insulin and decreases the secretion, motility and absorption in the digestive tract.

Doubtly AI · 28 Oct 2026 AI-verified · Oct 2026 Report

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Mention the name of germ layer from which adrenal cortex and pancreas are developed.(b) Explain the role of alpha (α) and delta (δ) cells of islets of Langerhans.

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