digestive system

• pancreas: a large gland behind the stomach which secretes digestive enzymes into the duodenum. Embedded in the pancreas are the islets of Langerhans, which secrete into the blood the hormones insulin and glucagon.
• liver: a large lobed glandular organ in the abdomen of vertebrates, involved in many metabolic processes
• epiglottis: a flap of cartilage behind the root of the tongue, which is depressed during swallowing to cover the opening of the windpipe.
• chyme: the pulpy acidic fluid which passes from the stomach to the small intestine, consisting of gastric juices and partly digested food.