Human digestive system - Wikipedia, Digestive system process essay
Digestive system process essay
After the stomach empties the food and juice mixture into the small intestine, the juices of two other digestive organs mix with the food to continue the process of digestion. One of these organs is the pancreas. It produces a juice that contains a wide array of enzymes to break down the carbohydrate, fat, and protein in food. Other enzymes that are active in the process come from glands in the wall of the intestine or even a part of that wall.
Depending on the size of the owl, some dine on insects; many dine on small rodents like mice and voles; the largest owls eat rabbits, other birds or even fox. Owls eat smaller prey whole. The food goes to the proventriculus where digestive enzymes break down the meal. Owl stomach acid is weak (pH to ) so they only digest soft tissue of prey, not bones or fur. The food moves to the gizzard where usable substances get used by the body and indigestible parts remain in the gizzard.
A bald tongue ( atrophic glossitis), with a smooth surface due to complete atrophy of the papillae, is associated with malnutrition , severe iron deficiency anemia , pernicious anemia , and pellagra , a disorder of skin and mucous membranes due to niacin deficiency. The condition is endemic in underdeveloped countries in which there are periods of famine.
Crohn's disease can affect any of the organs in the digestive tract, though the small intestine and large intestine are the ones that are most often involved.
The esophagus is a muscular tube connecting the pharynx to the stomach that is part of the upper gastrointestinal tract . It carries swallowed masses of chewed food along its length. At the inferior end of the esophagus is a muscular ring called the lower esophageal sphincter or cardiac sphincter. The function of this sphincter is to close of the end of the esophagus and trap food in the stomach.
The mechanical processes include the chewing and grinding of food by the teeth and also the churning and mixing of the contents of the stomach .
Food inside the stomach is only kept there by the force of gravity so to avoid heartburn, don't lie down after a big meal...
The digestive system made up of the gastrointestinal tract (GI), liver, pancreas, and gallbladder helps the body digest food. Digestion is important for breaking down food into nutrients, which your body uses for energy, growth, and cell repair.
Single-celled organisms can directly take in nutrients from their outside environment. Multicellular animals, with most of their cells removed from contact directly with the outside environment, have developed specialized structures for obtaining and breaking down their food. Animals depend on two processes: feeding and digestion.
Even before you eat, when you smell a tasty food, see it, or think about it, digestion begins. Saliva (say: suh-LYE-vuh), or spit , begins to form in your mouth.
Almost all animals have a tube-type digestive system in which food enters the mouth, passes through a long tube, and exits as feces (poop) through the anus. The smooth muscle in the walls of the tube-shaped digestive organs rhythmically and efficiently moves the food through the system, where it is broken down into tiny absorbable atoms and molecules.
Common causes of constipation include not eating enough fiber, not drinking enough water, certain medications, and changes in routine (such as travel). Constipation can occur during pregnancy. The increased levels of hormones during pregnancy can slow down the digestive system.
· The human digestive system is a complex series of organs and glands that processes food. In order to use the food we eat, our body has to break the food ...
The regular every day use of your Digestive System can cause problems and sometimes things go wrong. This is why sometimes you get Digestive System Disorders and they can come in many forms with various different effects on the body. Find out how to Prevent Digestive System Disorders and the common Digestive System Disorders that affect regular people every day.
Digestion begins with the mouth. Even the smell of food can generate saliva, which is secreted by the salivary glands in the mouth, contains an enzyme, salivary amylase, which breaks down starch. Teeth, which are part of the skeletal system, play a key role in digestion. In carnivores, teeth are designed for killing and breaking down meat. Herbivores’ teeth are made for grinding plants and other food to ease them through the digestion process.
There are several organs and other components involved in the digestion of food. The organs known as the accessory digestive glands are the liver , gall bladder and pancreas . Other components include the mouth , salivary glands , tongue , teeth and epiglottis .
Foods with high fat content are a very big problem because they are much harder to digest, and thus (1) will have to produce more stomach acid for digestion (2) will take longer to digest, which will keep the acid in your stomach longer and give it more opportunity to reflux back into your esophagus.
The food continues its journey through the small and large intestine. About a day later, what’s left comes out – as poop and pee. Along the way, the liver collects nutrients from food so your body can use it. The gall bladder and pancreas send juices to the intestines to help with digestion.
The lips, two fleshy folds that surround the mouth, are composed externally of skin and internally of mucous membrane , or mucosa. The mucosa is rich in mucus-secreting glands, which together with saliva ensure adequate lubrication for the purposes of speech and mastication.
Next, your muscles squeeze the wet mass of food down, down, down a tube, or esophagus, the way you would squeeze a tube of toothpaste. It’s not something you tell your muscles to do — they just do it — in a muscle action called peristalsis. Then, the valve to the stomach opens and pizza mush lands in your stomach!
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Digestion - Wikipedia
Human Digestive System - EnchantedLearning.com
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digestive system process essay
digestive system process essay