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प्रश्न
How do the salivary glands come to know that there is food in the mouth and it is time to secrete saliva?
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उत्तर
Through the nerves present in the mouth, the brain comes to know that there is food in the mouth. The brain then gives orders to the salivary glands to secret the saliva. Thus when there is food in the mouth, automatic secretion of saliva takes place.
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संबंधित प्रश्न
Write names of different parts of human digestive system and explain functions of any three parts.
What is the other same of food pipe?
Describe the parts of our tooth with the help of a labelled diagram.
The first enzyme to mix with food in the digestive tract is:
(a) pepsin
(b) cellulose
(c) amylase
(d) trypsin
Fill in the blanks.
The ______ and ______ are used for crushing and grinding the food.
Fill in the blanks.
Removal of undigested food is called ________.
Mention the different types of nutrition?
Identify which three of the following terminologies is true for human dentition.
Secretions of ____________ lubricate the lumen of the alimentary canal.
What is digestion?
