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प्रश्न
What is the function of rectum?
उत्तर
Rectum acts as a temporary storage site for undigested food. It has voluntary smooth muscles that remove the faeces out of the body through the anus.
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संबंधित प्रश्न
How is the small intestine designed to absorb digested food?
The inner lining of stomach is protected by one of the following from the harmful effect of hydrochloric acid. This is:
(a) pepsin
(b) mucus
(c) saliva
(d) bile
When a person puts food in his mouth, then teeth cut it into small pieces, chew and grind it. The glands A in the mouth secrete a substance B which is mixed with the food by tongue. The substance B contains an enzyme C which starts the digestion of food in the mouth. The slightly digested food from the mouth goes down a tube D. The special type of movements E in the walls of tube D push the food into stomach for further digestion. The stomach wall secretes gastric juice containing three substance F, G and H. One of the functions of F is to kill bacteria which may enter the stomach with food. The substance G protects the inside layer of stomach from the damaging effect of substance F whereas substance H is and enzyme for digestion. The partially digested food then enters into small intestine for further digestion.
(a) What is (i) gland A (ii) substance B, and (iii) enzyme C?
(b) Name the tube D.
(c) What is the movement E known as?
(d) What are (i) F (ii) G, and (iii) H?
How is the liver an important organ in our body?
Write the function of the following in the human alimentary canal:
Saliva
Write the function of the following in the human alimentary canal:
HCl in stomach
Write true or false for the below statement. Rewrite the false statements correctly.
Saliva contains lipase which digests carbohydrates
Describe the following: Digestion of fat in the intestine
Curdling of milk protein is done by ______.
What are villi?
