Adrenaline effects insulin by?
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Ans. B. Stimulation of beta cells Adrenaline decreases insulin secretion by acting on alpha-2 receptors on beta-cells ofpancreas.
The Pancreas is part of the Endocrine Physiology section of Physiology. Practise 18 exam-style MCQs for NEET PG, FMGE, INI-CET and NEET SS, each with the correct answer and a detailed explanation.
Alpha-2 suppression of insulin release, incretin action, hepatic somatomedins and GLUT4 downregulation in insulin resistance drive these The Pancreas MCQs, which test insulin physiology as high-yield NEET PG revision.
Ans. B. Stimulation of beta cells Adrenaline decreases insulin secretion by acting on alpha-2 receptors on beta-cells ofpancreas.
α-Adrenergic stimulators like norepinephrine, epinephrine inhibit insulin secretion β-Adrenergic stimulation increase insulin secretion α-Adrenergic action predominates so, there is inhibition of insulin secretion Reference: Ganong, 25th edition/page no.433
Oral glucose stimulates the release of certain hormones from GIT that acts on beta cells of pancreas to increase insulin secretion. Such GI hormones are termed as Incretins Incretin hormones are: Glucagon-like peptide-1 (GLP1) - most potent incretin Gastric inhibitory peptide (GIP) or Glucose dependent insulinotropic peptide Reference: Ganong, 25th edition page no.434
Insulin like growth factor is otherwise called somatomedins They are produced from liver Reference: Ganong, 25th edition page no.325
Insulin dependent glucose uptake largely occurs through GLUT - 4 Insulin resistance down regulates GLUT - 4 Reference: Ganong, 25th edition page no.432
Insulin doesn't increase during hypoglycemia Reference: Ganong, 25th edition/page no.352
Alpha-2 suppression of insulin release, incretin action, hepatic somatomedins and GLUT4 downregulation in insulin resistance drive these The Pancreas MCQs, which test insulin physiology as high-yield NEET PG revision.
MedLadder includes 18 curated MCQs for The Pancreas under Physiology (Endocrine Physiology), covering NEET PG, FMGE, INI-CET and NEET SS preparation.