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Which -of the following group constitute...

Which -of the following group constitute the right passage of food in the alimentary canal ?
A) Food `to` mouth `to` buccal cavity `to` pharynx `to` oesophagus `to` stomach `to` large intestine `to` small intestine `to` anus `to` rectum
B) Food `to` mouth `to` buccal cavity `to` pharynx `to` oesophagus `to` stomach `to` small intes-tine `to` large-intestine `to` rectum `to` anus

A

Pharynx

B

stomach

C

Small intestine

D

Liver

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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 ?

Arrange the parts of alimentary canal in an order A) Rectum " " B) Intestine C) Stomach " " D) Gizzard E) Oesophagus " " F) Buccal cavity G) Pharynx " " H) mouth I) Anus

Read the following statements and select the correct option. Statement 1: The human small intestine is the longest portion in the alimentary canal. Statement 2: Absorption of digested food requires a very large surface area

Fill in the blanks with suitable words given below. Fluctuation s of hormone (i)_____________ levels results in sensation of hunger and motivation of consuming food. When you feel your stomach is full and there is no need of food any more. Another hormone (ii)_____________ that gets secreted suppresses hunger. When we take food into the mouth it has to be chewed thoroughly. For this purpose the (iii)_____________ muscles help in chewing actions, while the (iv)_____________ muscles of the jaw moves the jaw up,down ,forward and backward during food mastication. The (v)_____________ nerve controls the muscles of the jaw. . Under the action of (vi)_____________ nervous system Saliva is released by the salivary glands moistens the food to make chewing and swallowing easier. The salivary (vii)_____________ in the saliva breaks down the starch into sugars. As a result of chewing the food is transported into the oesophagus by the action of swallowing which is coordinated by the swallowing centre in the (viii)_____________ and the (ix)_____________. The tongue which is gustatory recognizes the taste and (x)_____________ nerve plays an important role in sensation of taste. Choose the right ones. 1) leptin, grehlin gastrin secretin. 2) ghrelin leptin secretin gastrin. 3) deep muscles ,surface muscles ,circular muscles, striated muscles. 4) surface muscles, deep muscles, neck muscles, long muscle. 5) fifth cranial nerve ,second cranial nerve,fifth facial nerve, spinal nerve. 6) central nervous system, peripheral nervous system autonomous nervous system. 7) lipase, sucrase, galactase,amylase. 8) medulla oblongata, cerebrum , 8th spinal nerve,cranial nerve.7th cranial nerve. 9) Pons varoli, brain stem ,medulla oblongata, mid brain. 10) 6^(th) cranial nerve, 5^(th) cranial nerve, 10^(th) cranial nerve, optic nerve.

BEYOND PUBLICATION-COORDINATIONS IN LIFE PROCESSES-EXERCISE
  1. When does peristalsis occur in anti-clock-wise

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  2. Name the hormone that suppresses hunger pangs.

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  3. Name the teeth which are helpful in tearing sugarcane.

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  4. Example for the reflexes in stomach is

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  5. Tongue is a taste receptor . Which nerve helps to identify the taste?

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  6. Entry of chyme into duodneum is regulated by a muscle called

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  7. Name the valve indicated in the picture

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  8. In the dental formula of Man (2123)/(2123) '1' represents ……….(1) and ...

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  9. pH condition of stomach is…….

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  10. Observe the given part.The role of this part during digestion is

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  11. How much time it would take for emptying of 100 % food from small inte...

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  12. In the stomach,the food is digested to smooth mixture called chyme.But...

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  13. The animals which are active during day time,take rest at night time a...

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  14. Which -of the following group constitute the right passage of food in ...

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  15. The animals which are active during night time and collect food are ca...

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  16. Which of the following is not correct?

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  17. Peristalsis : Man, Reverse Peristalsis : ?

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  18. If (7,5) are the coordinates of a point P in the new systems when the ...

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  19. Sireesha is suffering with serious head ache.It is known that she didn...

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  20. i - Hormone stimulates hunger pangs , ii - when stomach is full hormo...

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