The process of obtaining raw materials from food.
The act of eating food or drinking; the first stage of food processing.
Mechanical and chemical breakdown of food into molecules small enough for absorption; the second stage of food processing.
Uptake of small nutrient molecules; the third stage of food processing.
Passage of undigested material from the digestive tract; the fourth stage of food processing.
Digestive tube that extends from the mouth to the anus.
Liquid secreted into the mouth that contains mucus and digestive enzymes that start chemical digestion.
Chewed clump of food that leaves the mouth and travels through the alimentary canal.
The junction in the throat of the alimentary canal and the trachea.
Muscle-encased tube of the alimentary canal that transports food from the pharynx to the stomach.
Series of smooth muscle contractions that push food through the alimentary canal.
Elastic, muscular sac where some chemical and some mechanical digestion take place.
Liquid mixture of food and stomach fluids released from the stomach into the small intestine.
Long, narrow tube where digestion is completed and most absorption occurs.
Largest organ in the body; performs many functions such as producing bile, storing glucose as glycogen, and transforming ammonia to urea.
Organ that stores bile from the liver and releases it into the small intestine.
Gland that makes digestive enzymes and secrets them into the small intestine; makes the hormones insulin and glucagon and secretes them into the blood.
Fingerlike projection of the inner surface of the small intestine that functions in absorbing nutrients.
Portion of the alimentary canal from which water is reabsorbed into the body.
Undigested food material and other waste products that exit the body through the anus.