False. Insulin is secreted by pancreatic beta cells (β-cells), not alpha cells. The islets of Langerhans in the pancreas contain several endocrine cell types: beta cells produce insulin, alpha cells (α-cells) produce glucagon, delta cells (δ-cells) produce somatostatin, and PP cells produce pancreatic polypeptide. Insulin is the primary hormone responsible for lowering blood glucose levels by promoting glucose uptake into cells and storage as glycogen. It is secreted in response to high blood glucose, such as after a meal. Glucagon, from alpha cells, has the opposite effect, raising blood glucose. This precise arrangement allows for tight regulation of blood sugar. In Type 1 diabetes, beta cells are destroyed, leading to insulin deficiency.

Break down complex topics into smaller, manageable chunks for easier recall.

Zambia

• Joseph Soko – 101 pts

• Visual Pathway Lesions
• Positive and Negative Symptoms
• Hallucinations and Delusions
• Antipsychotic Medications
• Emergency: Environmental Emergencies