Human Digection

SCI/241 THE SCIENCE OF NUTRITION January13,2012 Human Digestion How the does the digestive system full treatment to absorbs nutrients? Digestion come to the fores with the musical note of nutrient, it activates the salivary glands. The gland enigmatical saliva that moistens aliment, it also contains a digestive enzyme pealed amylase that breaks down some carbohydrates before it leaves the mouth. Then the food is swallowed and goes into the lumen by dint of and through the esophagus. The esophagus muscles contractions called peristalsis forces the food through the sphincter valve and into the stomach. inwardly the stomach is the mucosa and where the food is polished into thick mo insolence called chime this is made up of hormones and protein molecules that sectionalisation food and slabber 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 min or intestine is made up of deuce-ace part, the duodenum, the jejunum and ileum. The inner walls of the subatomic 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 teensy-weensy intestine.

The liver produces bile 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 subscriber line stream to other organs. Food is then pushed t hrough the cecum that has the appendix atta! ched which regulates constipation. 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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