Human Digection

SCI/241 THE SCIENCE OF NUTRITION January13,2012 Human Digestion How the does the digestive system kit and boodle to absorbs nutrients? Digestion come to the fores with the musical note of nutrient, it activates the salivary glands. The gland obscure saliva that moistens victuals, it also contains a digestive enzyme clavered amylase that breaks down about carbohydrates before it leaves the mouth. Then the food is swallowed and goes into the lumen with and through the esophagus. The esophagus muscles contractions called peristalsis forces the food through the sphincter valve and into the stomach. at bottom the stomach is the mucosa and where the food is polished into thick gas called chime this is made up of hormones and protein molecules that sectionalisation food and abide message to other organs to start their process in digestion. The food is hence pushed into baseborn catgut where digestion continues and nutrients are absorbed. The teeny intestine is made up of deuce-ace split, the duodenum, the jejunum and ileum. The inner walls of the excellent intestine are covered with millions of microscopical fingerlike projections call villi. Villi is the vehicle that nutrients are absorbed. The coloured gallbladder, and pancreas aide-de-camp in digestion of foods in the bantam intestine.

The liver produces bitterness to support absorb fats, the bile is stored in the gallbladder. The pancreas produces enzymes that help digest proteins, fats and carbs. The liver is also a key processing component of transporting nutrients from the small intestine into the rent stream to other organs. Food is then pushed through the cecum that has the appendix attached which regulates consti! pation. The cecum is the inflection area from the small intestine to the large intestine. The large intestine continues to breakdown food by removing water from the undigested food. The colon has three parts also, the ascending colon, the transverse colon absorbs smooth-spoken and salts, and the descending colon which contains bacteria to help digest the rest food product. The...If you compulsion to get a full essay, mark it on our website: OrderEssay.net

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