DIGESTIVE SYSTEM
The digestive tract, also known as the gastrointestinal (GI) tract, is made up of the mouth, esophagus, stomach, small intestine, large intestine —and the liver, pancreas, and gallbladder. Gut flora, bacteria part of the GI tract, helps with digestion too. The nervous and circulatory systems play key roles as well; thus, an arrangement of nerves, hormones, bacteria, blood, and the organs of the digestive system accomplishes the difficult task of digesting the foods and liquids a person consumes each day.
Looking at the food pyramid a person sees the multiple groupings of food; carbohydrates, proteins, fats, and essential vitamins. Individuality and altogether these nutrient substances are too complex to digest, so special enzymes and glands help break down the extensive process. The digestive process; starts at the mouth, it chews and uses salivary glands to break down starches, the esophagus swallows, the stomach uses acid to break down proteins, the small intestine also mixes food with acid and break down starch, protein, and carbs, and the liver uses bile acids to break down fats. Then the food molecules and minerals are immersed into the bloodstream for energy, growth, and storage of vitamins carried in the white blood cells (WBC’s).
To ends the digestive process the liver expels worn-out red blood cells (RBC’s) and other unusable materials into the large intestine. The large intestine uses muscles its muscles to store waste after it absorbs all necessary water and minerals then exits out through the anus.
Other process like hormones and nerve regulators help control the GI tract. Hormones control the functions of the digestive system and released within cells located in the lining of the stomach and small intestine. Furthermore, two types of nerve regulators control the action of the digestive system; extrinsic (outside), nerves connect digestive organs to brain and spinal cord. These nerves release chemicals causing the muscle layer of the GI tract to either contract or relax, depending on whether food needs digesting. The intrinsic (inside), nerves within the GI tract are triggered when food stretches the walls of the hollow organs. These nerves release many different substances that speed up or delay the movement of food and the production of digestive juices.
National Digestive Diseases Information Clearinghouse (NDDIC): The Digestive System and How It Works
http://digestive.niddk.nih.gov/ddiseases/pubs/yrdd/
The digestive tract, also known as the gastrointestinal (GI) tract, is made up of the mouth, esophagus, stomach, small intestine, large intestine —and the liver, pancreas, and gallbladder. Gut flora, bacteria part of the GI tract, helps with digestion too. The nervous and circulatory systems play key roles as well; thus, an arrangement of nerves, hormones, bacteria, blood, and the organs of the digestive system accomplishes the difficult task of digesting the foods and liquids a person consumes each day.
Looking at the food pyramid a person sees the multiple groupings of food; carbohydrates, proteins, fats, and essential vitamins. Individuality and altogether these nutrient substances are too complex to digest, so special enzymes and glands help break down the extensive process. The digestive process; starts at the mouth, it chews and uses salivary glands to break down starches, the esophagus swallows, the stomach uses acid to break down proteins, the small intestine also mixes food with acid and break down starch, protein, and carbs, and the liver uses bile acids to break down fats. Then the food molecules and minerals are immersed into the bloodstream for energy, growth, and storage of vitamins carried in the white blood cells (WBC’s).
To ends the digestive process the liver expels worn-out red blood cells (RBC’s) and other unusable materials into the large intestine. The large intestine uses muscles its muscles to store waste after it absorbs all necessary water and minerals then exits out through the anus.
Other process like hormones and nerve regulators help control the GI tract. Hormones control the functions of the digestive system and released within cells located in the lining of the stomach and small intestine. Furthermore, two types of nerve regulators control the action of the digestive system; extrinsic (outside), nerves connect digestive organs to brain and spinal cord. These nerves release chemicals causing the muscle layer of the GI tract to either contract or relax, depending on whether food needs digesting. The intrinsic (inside), nerves within the GI tract are triggered when food stretches the walls of the hollow organs. These nerves release many different substances that speed up or delay the movement of food and the production of digestive juices.
National Digestive Diseases Information Clearinghouse (NDDIC): The Digestive System and How It Works
http://digestive.niddk.nih.gov/ddiseases/pubs/yrdd/
LOOK AT THIS
PubMed: Gastroduodenal mucosal defense
New therapies have evolved since a new understanding of the digestion system. The GI tract has also been under research with involvement with other major organs.
http://www.ncbi.nlm.nih.gov/pubmed/24100725
Mercola.com: Confirmed – Your Digestive System Dictates Whether You’re Sick or Well
Emerging studies upon gut bacteria have been researched in great depth to see what effects its growth and presence. Gut flora has been a big topic in the digestive world.
http://articles.mercola.com/sites/articles/archive/2013/01/02/digestive-system-gut-flora.aspx
HealthyDay: Stress and the Digestive System
Scientists and doctors have figured out that the connection and the stomach are very close. Even the slightest bit of discomfort in the GI tract might become a serious medical issue in the future.
http://consumer.healthday.com/encyclopedia/digestive-health-14/digestion-health-news-200/stress-and-the-digestive-system-645906.html
PubMed: Gastroduodenal mucosal defense
New therapies have evolved since a new understanding of the digestion system. The GI tract has also been under research with involvement with other major organs.
http://www.ncbi.nlm.nih.gov/pubmed/24100725
Mercola.com: Confirmed – Your Digestive System Dictates Whether You’re Sick or Well
Emerging studies upon gut bacteria have been researched in great depth to see what effects its growth and presence. Gut flora has been a big topic in the digestive world.
http://articles.mercola.com/sites/articles/archive/2013/01/02/digestive-system-gut-flora.aspx
HealthyDay: Stress and the Digestive System
Scientists and doctors have figured out that the connection and the stomach are very close. Even the slightest bit of discomfort in the GI tract might become a serious medical issue in the future.
http://consumer.healthday.com/encyclopedia/digestive-health-14/digestion-health-news-200/stress-and-the-digestive-system-645906.html
SOURCES
- "National Digestive Diseases Information Clearinghouse (NDDIC)." - National Digestive Diseases Information ClearinghouseYour Digestive System and How It Works. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH), n.d. Web. 18 Jan. 2014.
- T, Kemmerly, and Kaunitz JD. "Result Filters." National Center for Biotechnology Information. U.S. National Library of Medicine, n.d. Web. 18 Jan. 2014.
- Mercola. "Confirmed – Your Digestive System Dictates Whether You're Sick or Well." Mercola.com. N.p., 02 Jan. 2013. Web. 18 Jan. 2014.
- Woolston, Chris. "Stress and the Digestive System." Current Health News. N.p., 2014. Web. 18 Jan. 2014.
- "Welcome to Poultry Hub." Poultry Hub. N.p., n.d. Web. 18 Jan. 2014.
- "Human Physiology." HumanPhysiology2011. N.p., n.d. Web. 18 Jan. 2014.