What is the difference between a fear and a phobia

What is the difference between a fear and a phobia consider, that you

The mucous membrane of the stomach contains simple columnar epithelium tissue with many exocrine cells. Small pores called gastric pits contain many exocrine cells that secrete digestive enzymes and hydrochloric acid into the lumen, or hollow region, of the stomach.

Mucous cells found throughout the stomach lining and gastric pits secrete mucus to protect the stomach from its own digestive secretions. The mucosa of the stomach is much thicker than the mucosa of the other organs of the gastrointestinal tract due to the depth of the gastric pits.

Deep inside the mucosa is a thin layer of smooth muscle known as the muscularis mucosae. Surrounding the mucosa is the submucosa layer of the stomach. The submucosa is made up of various connective tissues, blood vessels, and nerves. Connective tissues support the tissues of the mucosa and connect it to the muscularis layer.

The blood supply of the submucosa provides nutrients to the wall of the stomach. Nervous tissue in the submucosa monitors the contents of the stomach and controls smooth muscle contraction and secretion of digestive substances. The muscularis is made of 3 layers of smooth muscle tissue arranged with its fibers running in 3 different directions.

These layers of smooth muscle allow the stomach to contract to mix and propel food through the digestive tract. The outermost layer of the stomach surrounding the muscularis layer is the serosa - a thin serous membrane made of simple squamous epithelial tissue and areolar connective tissue. The serosa has a smooth, slippery surface and secretes a thin, watery secretion known as serous fluid. The smooth, what is the difference between a fear and a phobia surface of the serosa helps to protect the stomach from friction as it expands with food and moves to mix and propel the food.

In the mouth, we chew and moisten solid food until it becomes a small mass known as a bolus. When we swallow each bolus, it then passes through the esophagus to the stomach where it is stored along with other boluses and liquids from the same meal.

The size of the stomach varies from person to person, but on average it can comfortably contain 1-2 liters of food and liquid during a meal.

When stretched to its maximum capacity by a large meal or overeating, the stomach may hold up to 3-4 what is the difference between a fear and a phobia. Distention of the stomach to its maximum size makes digestion difficult, as the stomach cannot easily contract to mix food properly and leads to feelings of discomfort.

After the stomach has been filled with food from a meal, it stores the food for about 1-2 hours. During this time, the stomach continues the digestive process that began in the mouth and allows the intestines, pancreas, gallbladder, and liver to prepare to complete the digestive process.

At the inferior end of the stomach, the pyloric sphincter controls the movement of food into the intestines. The pyloric sphincter is normally closed to keep food and stomach secretions within the stomach. Once chyme is ready to leave the stomach, the pyloric sphincter opens to allow a small amount of chyme to pass what is the difference between a fear and a phobia the journal anesthesiology. This process, known as gastric emptying, slowly repeats over the 1-2 hours that food is stored in the stomach.

The slow rate of gastric emptying helps to what is the difference between a fear and a phobia out the volume of chyme being released from the stomach and maximizes the digestion and absorption of nutrients in the intestines. The stomach produces and secretes several important substances to control the digestion of what is the difference between a fear and a phobia. Each of these substances is produced by exocrine or endocrine cells found in the mucosa.

Digestion in the stomach can be divided into 2 classes: mechanical digestion and chemical digestion. Mechanical digestion is the physical division of a mass of food into smaller masses while chemical digestion is the chemical conversion of larger molecules into smaller molecules.

The activity of the stomach is under the control of several hormones that regulate the production what is the difference between a fear and a phobia stomach acid and the release of food into the duodenum.

Find out more in this Bitesize Primary KS2 What is the difference between a fear and a phobia guide. The stomachThe stomach is an important organ in the digestive system. After food has been chewed in the mouth and swallowed, it enters the stomach via the oesophagus. The stomach produces strong acid. This kills many harmful microorganisms that might have been swallowed along with the food.

It also contains special chemicals called enzymes. These are important for breaking down the food so it can be absorbed by the body. Heredity it leaves the stomach, the partially-digested food passes into the intestines where it begins to be absorbed.

JavaScript prednisolone 30mg required to view this activity. There's more to learn. What are the types of teeth. This guideWhat happens in your stomach. What happens in your intestines.

What is the circulatory system. Up nextWhat happens in your intestines. This guideWhat happens in your intestines. The upper part of the stomach connects to the esophagus, and the lower part leads into the small intestine. When food enters the stomach, muscles in the stomach wall create a rippling motion (peristalsis) that mixes and mashes the food.

At the same time, juices made by glands in the lining of the stomach help digest the food. After about 3 hours, the food becomes a liquid and moves into the small intestine, where digestion continues. Botanically-speaking, fennel seeds are not seeds, but are the fruits of the sweet fennel plant, an herb bacillus coagulans has been cultivated for culinary and medicinal use for thousands of years.



18.06.2019 in 14:20 wellssigvili:
Очень познавательно. Спасибо.

26.06.2019 in 14:39 Петр:
Боже мой! Ну и ну!