Question

explain digestive system briefly​

Answer 1

Answer:

digestive system is helps to digest food. inhuman there are 5 main parts are helps to to do so

1. mouth helps for intaking of food
2. food pipe helps to transport the food to stomach. in stomach hcl is present which makes the food acidic for kill the germs
3. smallintestine which is called site of complete digestion.
4. large intestine which absorbs undigested food and water.

Answer 2

Answer:

There are 5 parts in our body which is mouth, oesophagus, stomach, large intestine and small intestine . There is 3 glands in our body which is liver, pancreas, and salivary gland.

Explanation:

• 1. mouth- it helps to mix & chew the food. teeth which helps to break food and salivary gland which have a liquid juice saliva who analyse starch to maltose.

• 2. oesophagus- it passes the food by muscular movement which is known as paristalysis .

• 3. stomach- in our stomach the food remains 3 hrs . the wall of stomachsecrets gastric juice like HCL, pepsin and mucus.

• 4. liver- acidic food is made basic with the help of bile juice. fats are present in intestine in form of large globules which makes it difficult to act on enzymes.

• 5. pancreas- it secrets pancreatic juice which contains enzymes like trypsin for digesting protiens and lipase for breaking down emulsified fats.

• 6. small intestine- the inner lining of small intestine has numerous figure like structure called villi. which increase the surface area of absorbtion of digested food.

• 7. large intestine- the unabsorbed food is sent into large intestine , where its wall absorb more water from material. the rest unused material is removed from body by anus. the exit of this waste material is regulated by the anal sphincter.