Multiple Choice QuestionsThe pylorous is the constricted part of the alimentary canal which is situated between
stomach and duodenum
oesophagus and stomach
duodenum and ileum
ileum and rectum
A.
stomach and duodenum
Pylorous is constricted part of the alimentary canal present between stomach and duodenum. It is a cone- shaped constriction in the gastro- intestinal tract that connects to the duodenum.
The intestinal juice, succus entericus is secreted by
Brunner's gland
Kupffer cells
crypts of Leiberkuhn
goblet cells
C.
crypts of Leiberkuhn
Crypts of Leiberkuhn are multicellular, simple, tubular glands. The secretion of glands collectively called intestinal juices or succus entericus.
Brunner's glands are compound tubular sub- mucosal glands found in the portion of the duodenum.
Kupffer cells are the specialised macrophages loacted in the liver, lining the walls of the sinusoids.
Fatty acids are absorbed by the
lacteals
pylorous
colon
capillaries
A.
lacteals
Lacteals are present in villus absorbed the fatty acids and glycerol molecules.
Pylorus is the opening from the stomach into the duodenum. It prevents intestinal contents from re- entering the stomach.
Colon is a part of large intestine. Its function is to reabsorb fluids and process waste products.
Capillary is a small blood vessel. They are the sites of transfer of oxygen and other nutrients from the bloodstream to other tissues in the body.
Hydrochloric acid in the stomach is secreted by some special type of cells called
peptic cells
goblet cells
oxyntic cells
gastric cells
C.
oxyntic cells
Parietal cells or oxyntic cells are the epithelial cells that secrete hydrochloric acid and intrinsic factor. These cells are located in the gastric glands found in the lining of the fundus and in the cardia of the stomach.
These cells produce gastric acids.
Peptic cell is a cell in the stomach that releases pepsinogen and chymosin.
Goblet cells are found in the epithelium of many organs. Their main role is to secrete mucus in order to protect the mucous membranes.
In horses, rabbits, hares the cellulose gets digested in the
caecum
stomach
appendix
rumen
A.
caecum
Caecum is a small, pouch-like structure which ends into a tubular structure called vermiform appendix.
Which of the following teeth are lophodont?
Incisor and canine
Canine and premolar
Premolar and molar
Premolar and incisor
C.
Premolar and molar
The premolars and molars are called cheek teeth. These are also called Iophodont teeth. Their free ends are flattened and bear transverse ridges to crush and grind the food.
A secretion that digests both carbohydrates and proteins is
ptyalin
pepsin
pancreatic juice
saliva
C.
pancreatic juice
Pancreatic juice acts upon both carbohydrates and proteins.
Villi are present in
large intestine
small intestine
colon
stomach
B.
small intestine
Villi are present in small intestine. They increase surface area which is helpful in absorption.
Food is move along the alimentary canal by the contraction known as
peristalsis
epiglottis
osmosis
cyclosis
A.
peristalsis
Peristalsis is a involuntary movements of gut by which food bolus is moved backword. It is least in rectum.
Which of the following digestive juices has the minimum pH value?
Bile
Gastric juice
Saliva
Pancreatic juice
B.
Gastric juice
Bile is an alkaline viscous fluid, yellow to green in colour and having a pH of 7.8- 8.6.
Saliva is secreted by salivary gland and its pH is about 6.8.
Gastric juice is secreted by the gastric gland in stomach and its pH value is 1- 2.5.
Pancreatic juice is colourless watery fluid and slightly alkaline. Its pH is 7.5-8.0.
Therefore, gastric juice has minimum pH value.
