Which part of the body manufactures insulin?

• A. Pancreas
• B. Small Intestine
• C. Spleen
• D. Stomach

Answer: (A)

Insulin is produced by the pancreas, specifically by the beta cells in the islets of Langerhans. The pancreas has an endocrine part that makes hormones like insulin, released into the bloodstream in response to rising blood glucose after a meal. Insulin helps body cells, especially in muscle and fat tissue, take in glucose and also reduces glucose production by the liver, bringing blood sugar down. The other organs listed don’t manufacture insulin: the small intestine handles digestion and releases hormones that can modulate insulin release but doesn’t produce insulin itself; the spleen is involved in immune functions; and the stomach mainly secretes acid and digestive enzymes.