বহুনির্বাচনি (MCQ)
১. Secretin is released mainly in response to:
ক) Fat in the duodenum
খ) Acid in the duodenum
গ) Distension of the stomach
ঘ) Protein in the stomach
ঙ) Vagal stimulation
উত্তর দেখুন
সঠিক উত্তর: খ) Acid in the duodenum
ব্যাখ্যা: Acid chyme in the duodenum releases secretin from S cells; it makes the pancreas secrete bicarbonate-rich juice to neutralise the acid. Fat and protein mainly release CCK.
📖 রেফারেন্স: Guyton & Hall, Textbook of Medical Physiology · Secretory functions of the alimentary tract
