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प्रश्न
What bodily needs or sensations do you become aware of even though you are reading a book?
उत्तर
We become aware of our breathing and palpitations of the heart that are going on. Sometimes some weird sounds from the stomach are audible. This indicates that some digestive activity is taking place in the body.
APPEARS IN
संबंधित प्रश्न
Match the items of Column I with suitable items in Column II.
| Column I | Column II | ||
| (a) | Salivary gland | (i) | Bile juice secretion |
| (b) | Stomach | (ii) | Storage of undigested food |
| (c) | Liver | (iii) | Saliva secretion |
| (d) | Rectum | (iv) | Acid release |
| (e) | Small intestine | (v) | Digestion is completed |
| (f) | Large intestine | (vi) | Absorption of water |
| (vii) | Release of faeces |
Name the main organs of the human digestive system. Also name the associated glands.
How is thorough chewing of food helpful in digestion?
Fill in the blanks.
Grinding of food is brought about by _______ and ______
Observe the diagram given alongside and answer the following:
- Name the parts numbered 1-8.
- Which parts shown in the diagram are non-living?
- Is the tooth suited for cutting, tearing or grinding?
- What is the function of parts 8 and 7?
- What is the total number of teeth present in adult human beings?
- Write the dental formula of human beings.
Mark odd one in the series:
Name the enzymes secreted by the following: Ileum
Observe the diagram. This is the histological structure of the stomach. Identify and comment on the significance of the layer marked by an arrow.
What causes movement of food inside the alimentary canal?
Given below are two columns, Column I shows enzymes secreted by the glands in the alimentary canal of human beings and Column II indicates the components of food on which enzymes act. Choose the options showing correct matching:
