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Answers
1. These neurons helps us to feel the inner system of our gut and it others contents. It has the ability to control its our reflexes and actions. The enteric nervous system ( ENS ) is termed as second brain of the gut bcz.. it has the ability to operate independent of the brain and the spinal cord.
2. Salivary glands will help in secretion of saliva.
so, if ducts of salivary glands are closed then the following consequences may results :
a. Absence of saliva in mouth and hence we cannot judge the taste of food.
b. Absence of mastication process.
c. Carbohydrates cannot be digested which results in lack of energy.
d. Bcz.. lack of energy, metabolic activities will not take place.
e. Body suffers from wit disorders related to deficiency.
f. Cell will lack all nutrients and ultimate the organism will die.
3. refer diagram for this que.. and explaination is here,
The amount of the neurosecretory protein hormone ghrelin in the blood increases as a result of visual stimulation images of food.
4. refer image for this que..
5. refer image for this que.. and explaination is here,
The digestive system breaks down the food into nutrients. The transfer of food particles from the digestive system to circulatory system takes place at the inner lining of the small intestine, through millions of finger - like projections called villi, which contain a network of capillaries .
6. Importance of mucus on the walls of food pipe : The walls of food pipe secrete a slippery substance called mucus. The mucus lining lubricates and protects the oesophageal walls from any damage and helps the bolus to easily slide down food pipe. refer image for que..
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