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Arrange the following parts of the diges...

Arrange the following parts of the digestive system in the order in which food passes through on the way from the mouth to the anus.
(a) pharynx ,(b) pyloric sphincter , (c )rectum , (d) stomach , (e ) caecum , (f) small intestine , (g) colon , (h) oesophagus

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The partially digested food coming from the stomach of a person enters a long and narrow organ A in his body. The organ A receives the secretions of two glands : liver and secretes a greensih yellow liquid B which is normally stored in the organ C. Pancreas secretes pancreatic juice which contains three digestive enzymes D, E and F. The intestinal juice completes the process of digestion of food. The inner wall of organ A has million of tiny finger-like projections G which help in the rapid absorption of digested food into blood stram. The undigested part of food then passes into wider tube H which absorbs most of the water from undigested food. The last part of tube H called I stores this undigested food (or waste) for some time. The undigested food is then passed out though opening J as faeces in the process known as K. (a) Name the organ A. (b) Name (i) liquid B, and (ii) organ C (c) What are the digestive enzymes D, E and F ? (d) Name (i) tube H (ii) part I (iii) opening J, and (iv) process K

Knowledge Check

  • In the human digestive system, digestion occurs in (a) buccal cavity (b) stomach ( c) small intestine (d) large intestine Chose the correct option from the following

    A
    (a) only
    B
    (a) and (b) only
    C
    (b), ( c) and (d) only
    D
    (a), (b) and ( c) only

  • Assertion: The oesophagus is a thin. long tube which extends anmeriorly passing through the neck, thorax and diaphragm and leads to a J shaped bag like structure called stomach Reason: Stomach has three major parts-a fundic portion into which the oesophagus open, a cardiac region and pyloric portion which opens into the first part of small intestine.

    A
    If both assertion and reason are true and the reason is a correct explanation of the assertion.
    B
    If both assertion and reason are true but the reason is not a correct explanation of the assertion.
    C
    If assertion is true but reason is false
    D
    If both the assertion and reason are false.

  • Read the following statements and find out the incorrect statement. A. The dorsal surface of tongue has small projections called papillae and these bear taste buds. B. Oesophagus opens into the cardiac part of stomach. C. Arrangement of teeth in each half of upper and lower jaw is represented by dental formula. D. Rectum is a small sac which hosts some symbiotic micro-organisms.

    A
    A and D
    B
    B and D
    C
    B and C
    D
    A and C

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