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Did we have a sphincter in any other par...

Did we have a sphincter in any other part of the digestive canal ? Where was it ?

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Yes, We have a sphincter at the opening where stomach opens into duodenum (small intestine.)
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Read the following passag: As the process of digestion in the stomach nears completion, the contraction of the stomach decrease. This prompts the muscles called as pyloric shincter opening of the stomach and the first part of the small intestine or duodenum to realax. This opens the pathway into duodenum releasing the partially digested food (chyme) in small quantities into the duodenum. Peristalsis involves the contractin of the muscle behind the food and the relaxation of he muscles in front of the food and the relaxation of the muscles in front of the food giving rise to na thrust that pushes the food forward through the digestive canal. A wave of contraction followed by realaxtion in muscles help in forward movement of food. Wirte answer for the following questions. What is the use of peristalsis movement ?

Read the following passag: As the process of digestion in the stomach nears completion, the contraction of the stomach decrease. This prompts the muscles called as pyloric shincter opening of the stomach and the first part of the small intestine or duodenum to realax. This opens the pathway into duodenum releasing the partially digested food (chyme) in small quantities into the duodenum. Peristalsis involves the contractin of the muscle behind the food and the relaxation of he muscles in front of the food and the relaxation of the muscles in front of the food giving rise to na thrust that pushes the food forward through the digestive canal. A wave of contraction followed by realaxtion in muscles help in forward movement of food. What is the use of duodenum ?

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VGS PUBLICATION-BRILLIANT-COORDINATION IN LIFE PROCESSES -QUESTIONS GIVEN IN THE LESSON (1 MARK QUESTIONS)
  1. What stimulates stomach muscle into action ?

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  2. What causes the stomach to churn and mix the food ?

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  3. Why should only a small quantity of food be passed from stomach do duo...

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  4. What is involved in bringing of about peristalsis?

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  5. What is the direction of peristalsis ( which end of the gut does it be...

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  6. What happens if the direction of present is reversed ?

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  7. Why do you think small intestine is long and coiled ?

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  8. What process is involved in this process of absorption ?

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  9. What is the relation between finger -like structures and paper folds?

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  10. What systems do you think are working together ?

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  11. Do you think those systems work together in the whole length of the di...

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  12. Often you may have experienced that if you have tension for some reaso...

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  13. What moves out of the gut ?

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  14. Two major pathways of waste expulsion are shown above. Which of the tw...

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  15. What controls the exit of stools from the body ?

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  16. Do you think the control is voluntary ? Why /Why not ?

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  17. Did we have a sphincter in any other part of the digestive canal ? Whe...

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  18. What is the fate of the digested substances that move into blood from ...

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  19. Where is the energy stored ?

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  20. Which system do you think will remove the excess salts from our body?

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