английский за проф направлением. Укладач Триполець В.І. Рецензенти

• Название: Укладач Триполець В.І. Рецензенти
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46. The Digestive System.

Травна система.
I. Vocabulary.

1. Read and learn the topical vocabulary.

digestion — травлення;

nutrients— поживні речовини

saliva— слина;

esophagus— стравохід;

stomach— шлунок;

gastricjuice— шлунковий сік;
duodenum— дванадцятипала кишка;

small intestine — тонка кишка;

gall bladder — жовчний міхур;

bile— жовч;

liver— печінка;

pancreas— підшлункова залоза;

largeintestine— товста кишка;

cecum— сліпа кишка;

sigmoidcolon— сигмоподібнаободова кишка.
2. Learn some more terms denoting digestive system elements.

Alimentary canal (the digestive tract) — the series of muscular structures through which food passes while being converted to nutrients and waste products; includes the oral cavity, pharynx, esophagus, stomach, large intestine, and small intestine.

Pancreas — an enzyme-producing gland located below the stomach and above the intestines. Enzymes from it help in the digestion of carbohydrates, fats and proteins in the small intestine.

Liver — a large organ located above and in front of the stomach. It filters toxins from the blood, and makes bile (which breaks down fats) and some blood proteins.

Peristalsis — rhythmic muscle movements that force food in the esophagus from the throat into the stomach. Peristalsis is involuntary — you cannot control it.

Gall bladder — a small, sac-like organ located by the duodenum. It stores and releases bile (a digestive chemical which is produced in the liver) into the small intestine.
3. Read and memorize some interesting facts.

→ The movement of food in the intestines of a healthy person may last from 12 to 72 hours.

→ The amount of gastric juice secreted in the stomach within 24 hours is 1.5—2 litres.

→ 1.7 liters of saliva is made in your mouth for one day.

→ The human stomach contains about 35 million small digestive glands.
4. Match the terms and their definitions.

Gastric juice Esophagus Large intestine Enzyme Small intestine

protein that speed up the rate of chemical reactions the long, thin winding tube that food goes through after it leaves the stomach muscular tube connecting the mouth and stomach the long, wide tube that food goes through after it goes through the small intestine secretion of the gastric glands of the stomach, containing hydrochloric acid, pepsin, and mucus

II. Reading.

1. 
   Read and translate the following text.
   
2. 
   Find in the text all anatomic terms denoting digestive system elements.
   

3. Find in the text the sentences where something is said about:

1. 
   the beginning of digestion;
   
2. 
   the stomach;
   
3. 
   the small intestine;
   
4. 
   the nutrients;
   
5. 
   the large intestine;
   
6. 
   waste products.
   

4. Read the text again and get ready to speak on the structure of the diges-
tive system using the pictures and anatomical terms.

HOW THE BODY USES FOOD

The body needs energy to maintain all its functions. The body breaks food down into its nutrients through the process of digestion. Digestion begins in the mouth. As food is being chewed, salivamoistens the particles. The saliva begins to break down starchy parts of food. After the food is swallowed, it passes through the esophagus, a tube that leads into the stomachwhich is a hollow, sac-like organ connected to the esophagus and the duodenum. The stomach consists of layers of muscle and nerves that continue the breakdown of food which begins in the mouth. In the stomach, the food is thoroughly mixed with a digestive juice. The juice, called gastric juice, speeds up the digestion of food.

The partly digested food, called chyme, passes from the stomach into the small intestine.First, food enters the duodenum,the first part of the small intestine. It then enters the jejunumand then the ileum(the final part of the small intestine). In the small intestine, other juices complete the process of digestion. They break down the food into mol­ecules that pass through the walls of the intestine and into the bloodstream.

The blood distributes the nutrients to cells and tissues throughout the body. There the nutrients are broken down to produce energy or are used to rebuild tissues or to regulate chemical processes. Some of the nutrients are stored in the body, and others are used over and over again. But most of the nutrients undergo chemical changes as they are used in the cells and tissues. These chemical changes produce waste products, which go into the bloodstream.

Some of the wastes are carried to the kidneys, which filter the wastes out of the blood. The body expels these wastes in the urine. The liver also filters out some wastes and concentrates them into a liquid called bile. Bile is stored in the gall blad­der until it is needed to aid in the process of digestion. Then the gall bladder empties bile into the small intestine. From there, any remaining bile passes into the large intestine, along with those parts of the food that could not be digested in the small intestine. The liver (located under the rib cage in the right upper part of the abdomen), the gallbladder (hidden just below the liver), and the pancreas (beneath the stomach) are not part of the alimentary canal, but these organs are essential to digestion.

So, after passing through the small intestine, food passes into the large intes­tine which consists of cecum(the appendix is connected to the cecum), colon(as­cending, transverse, descending) sigmoid colon and rectum. The rectum ends in the anus. The large intestine absorbs water and small amounts of minerals from waste material. This material, along with bacteria present in the large intestine, becomes the final waste product, the feces, and it is eliminated from the body.
III. Post-reading activites.

1. Answer the following questions.

1. 
   Why does the body need energy?
   
2. 
   Where does the process of digestion begin?
   
3. 
   What happens after the food is swallowed?
   
4. 
   What juice accelerates the digestion of food?
   
5. 
   What is the way of food after it passes the stomach?
   

6. 
   Where does the blood distribute the nutrients?
   
7. 
   What happened in the small intestine?
   

8. Can you name the organs which are not part of the alimentary canal, but
these organs are essential to digestion?

9. What happened after the food passes into the large intestine?
2. Put the sentences in the right order.

1. 
   The partly digested food passes from the stomach into the small intestine.
   
2. 
   Waste products are eliminated from the body.
   
3. 
   Digestion begins in the mouth.
   
4. 
   After passing through the small intestine, food passes into the large intestine.
   
5. 
   After the food is swallowed, it passes through the esophagus to the stomach.
   

3. Match the terms and their definitions.

1. A digestive chemical that is produced in the liver, stored in the gall bladder, and secreted into the small intestine. 2. Food in the stomach that is partly digested and mixed with stomach acids. 3. The flap at the back of the tongue that keeps chewed food from going down the windpipe to the lungs. 4. Glands located in the mouth that produce saliva. 5. The opening at the end of the digestive system from which feces (waste) exits the body. 6. A small sac located on the cecum. 7. The first part of the digestive system, where food enters the body. 8. Largest region of the large intestine, divided into four sections: ascending, transverse, descending, and sigmoid. 9. Roof of the mouth, divided into hard and soft portions, that separates the mouth from the nasal cavities. 10. Small projections on the upper surface of the tongue that contain taste buds.




a) appendix; b) papilla; c) colon; d) bile; e) salivary glands;

f) anus; g) palate; h) chime; i) epiglottis; j) mouth
4. Study some terms denoting digestive system disorders, but first match the terms and their definitions.

Hepatitis Gallstones Appendicitis Ulcer (digestive) Cirrhosis Anorexia nervosa

Eating disorder usually occurring in young women that is characterized by an abnormal fear of becoming obese, a persistent aversion to food, and severe weight loss. Inflammation of the appendix. Chronic disease of the liver in which normal liver cells are damaged and then replaced by scar tissue. Solid crystal deposits that form in the gall bladder. Inflammation of the liver, caused mainly by a virus. Any sore that develops in the lining of the lower esophagus, stomach, or duodenum.

5. Write a short summary of the text.

IV. Speaking.

Make a dialogue between a gastroenterologist and a patient. Here is vo­cabulary for you to speak about digestive tract problems.

QUESTIONS Do you have any pain in your abdomen? Have you lost your appetite? Do you have any difficulties in swallowing? Did you feel sick recently? Have you lost/put on weight? Do you have regular bowel movements? How often do you go to the toilet? Have you noticed any blood in your stools?

INSTRUCTIONS Please lie down on your back and rest both arms alongside your body. Now I want to tap on your belly. When I push here and let loose suddenly, does it hurt? Please relax and try to let your belly go soft.

V. Supplement.

Text I

1. Read the information about one of the most frequent pathological con­ditions in the digestive system.
2. Make a plan of the text.
3. Abridge the text by writing out only topical sentences.

ULCERS (DIGESTIVE)
A digestive ulcer is any sore¹ that develops in the lining of the stomach or duodenum (sores in the lower esophagus occur less frequently). Because these sores form in areas where gastric juice is present, they are generally referred to as peptic ulcers (pepsin is an enzyme in gastric juice). Peptic ulcers found in the stomach are more specifically called gastric ul­cers. Those in the duodenum are called duodenal ulcers. Of the two, duodenal ulcers are the most common type, accounting for about 80 percent of all digestive ulcers. They tend to be smaller than gastric ulcers and heal² more quickly. Any ulcer that heals leaves a scar.

The symptoms for gastric ulcers include feelings of heartburn³, nausea, weight loss, and stomach pain. That pain is described as gnawing, dull, aching, or resem­bling hunger pangs. About one-third of those individuals suffering from gastric ulcers are awakened by pain at night.

The symptoms for duodenal ulcers differ slightly. They include heartburn, stomach pain that is relieved by eating or antacids, and a burning sensation at the back of the throat. Pain is most often felt two to four hours after a meal. Citrus juices, coffee, and aspirin bring on pain more quickly. About 50 percent of individuals suffering from duodenal ulcers are awakened by pain at night.

Before the 1980s, physicians believed ulcers were caused by several fac­tors — including stress and a poor diet — that resulted in excess stomach acid. Medical research has since shown that a certain bacterium that can live undetected in the mucous membrane of the digestive tract is the culprit⁴. This bacterium (called Helicobacter pylori (H. pylori)) irritates and weakens the lining, making it more susceptible to damage by gastric juice. About 95 % of duodenal ulcers and 70 per­cent of gastric ulcers are caused by this bacterium.

Treatment for peptic ulcers includes antibiotics to eliminate the bacterium and other drugs to reduce the amount of gastric juice secreted in the stomach. Very few ulcers fail to respond to the medications that are currently used to treat them. Also you should remember some points to prevent ulcers: Don't smoke.

Avoid anti-inflammatory drugs such as aspirin and ibuprofen. Avoid caffeine and alcohol (or have them only in small amounts and on a full stomach).

Avoid spicy foods if they cause heartburn. Reduce stresses and modify your lifestyle.

Notes:

¹ sore — виразка, рана, запалення

² to heal — лікувати, загоювати

³ heartburn — печія

⁴ culprit — винуватець
4. Answer the following questions.

1. 
   What is digestive ulcer?
   
2. 
   How do we call peptic ulcers found in the stomach?
   
3. 
   Ulcer found in the duodenum are called duodenal ulcers, aren't they?
   
4. 
   What is the most common type of ulcer?
   

5. 
   Is there any differences between the symptoms for gastric ulcer and duodenal one?
   
6. 
   What is the cause of ulcers?
   
7. 
   What is the treatment for peptic ulcer?
   
8. 
   How can we prevent ulcers?
   

5. Fill in the table. Compare your answers with your partner's.

Peptic ulcers	What Ihave learned from the text about the topic
Ulcer symptoms
The cause of ulcers
Treatment for peptic ulcers
The prophylaxis of ulcers

6. Make a dialogue between a doctor and a patient, who has ulcer symp­toms. Act it out.

Text 2
1.Read and translate the information which will help you to keep your digestive system healthy.