function of the digestive system
structures of the digestive system
Mouth: mechanical digestion happens here as your teeth crush the food, enzymes in our saliva break down starches in food
Pharynx: the tongue pushes chewed food into the upper portion of the throat, this is called the pharynx, what we have between the digestive tract and the respiratory system.
Epiglottis: seals off trachea or windpipe preventing food and liquid from entering your lungs
Esophagus: a muscular tube that connects the pharynx to the stomach
Peristalsis: muscle contractions that move the food along
parts of digestive system
Stomach: from the esophagus, food passes through valve and into the stomach, a muscular pouch in the abdomen
Chyme: the thick liquid that is moved around by peristalsis
Small Intestine: where most chemical digestion and absorption take place
Liver: the role is to produces bile, a substance that physically breaks up large fat droplets
Gallbladder: Bile flows from the liver to the gallbladder, the organ that stores bile, the gallbladder releases bile through a tube into the small intestine
Pancreas: between stomach and small intestine, secreted enzymes into the small intestine that complete the breakdown of carbohydrates, proteins, and fats.
Villi: tiny fingerlike projections that line the small intestine and absorb nutrients
Large Intestine: absorbs remaining water into the blood, absorbs vitamin K that is produced by bacteria, prepares waste products
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