SHORT ANSWERS (2M)
1. Name digestive enzymes.
2 Give functions of bile.
Write exocrine functions of pancreas
. What do mean by peptic ulcer
5. Draw a neat labeled diagram of stomach
Name the salivary glands and functions of their secretions.*
Explain peristaltic movement of small intestine.
Mention the functions of pancreatic enzymes.
9. Write the composition of bile.
10. Mention the functions of stomach.
1. What is liver cirrhosis?
Answers
1.Answer÷ Some digestive enzymes are ÷
Amylase, produced in the mouth. It helps break down large starch molecules into smaller sugar molecules.
Pepsin, produced in the stomach.
Trypsin, produced in the pancreas.
Pancreatic lipase, produced in the pancreas.
Deoxyribonuclease and ribonuclease, produced in the pancreas.
2.Answer÷
Bile increases the absorption of fats, it is an important part of the absorption of the fat-soluble substances, such as the vitamins A, D, E, and K. Besides its digestive function,bile serves also as the route of excretion for bilirubin, a byproduct of red blood cells recycled by the liver.
3.Answer÷ Exocrine function of Pancreas is it releases juices directly into the bloodstream, and it has an exocrine functionbecause it releases juices into ducts.
4.Answer÷ An ulcerin the wall of the stomach or duodenum resulting from the digestive action of thegastric juice on the mucous membrane when the latter is rendered susceptible to its action.
6.Answer÷ The salivary glands produce saliva, which keeps the mouth and other parts of the digestive system moist. It also helps break down carbohydrates.
7.Answer÷Peristaltic movement comprises relaxation of circular smooth muscles, then their contraction behind the chewed material to keep it from moving backward, then longitudinal contraction to push it forward.
8.Answer÷
Pancreatic enzymes help break down fats, proteins and carbohydrates. A normally functioning pancreas secretes about 8 cups of pancreatic juice into the duodenum, daily. This fluid contains pancreatic enzymes to help with digestion and bicarbonate to neutralize stomach acid as it enters the small intestine.
9.Answer÷
The composition of hepatic bile is 97% water, 0.7% bile salts, 0.2% bilirubin, 0.51% fats (cholesterol, fatty acids, and lecithin), and 200 meq/l inorganic salts. About 400 to 800 ml of bile is produced per day in adult human beings.
10.Answer÷
The stomach is a muscular organ located on the left side of the upper abdomen. Thestomach receives food from the esophagus.
As food reaches the end of the esophagus, it enters the stomach through a muscular valve called the lower esophageal sphincter. Thestomach secretes acid and enzymes that digest food.
11.Answer÷Cirrhosis is a complication of liver disease that involves loss of liver cells and irreversible scarring of the liver.
Alcohol and viral hepatitis B and C are common causes of cirrhosis, although there are many other causes.
Cirrhosis can cause weakness, loss of appetite, easy bruising, yellowing of the skin (jaundice), itching, and fatigue.
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