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Locomotion and Movement

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CBSE Gujarat Board Haryana Board

## Previous Year Papers

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Class 10 Class 12
What is oxygen debt ?

Oxygen debt : During active work or exercise, the rate of oxygen supply by the lungs falls short of the requirement of the muscles. Hence, the muscles start respiring anaerobically and lactic acid accumulates in the muscles. The breathing rate gradually becomes high to enhance O2 intake by the lungs. This is called oxygen debt. Hard breathing continues for sometime even after the work or exercise is finished and this is to restore the depleted store of ATP and glucose to normalise the oxidative processes by reutilizing the accumulated lactic acid. red that persons with insufficient supply of glucose are incapable of hard physical labour.
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Total number of pair of ribs?

12
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how many pairs of floating ribs are present in humns?

2
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What is the rib cage made of ?

The thoracic vertebrae, ribs and sternum together form the rib cage.
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Which pairs are called false ribs?

8th, 9th and 10th pairs of ribs are called as false ribs or vertebrondral ribs.
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What is gout ?

Gout is the inflammation of joints due to accumulation of uric acid crystals.
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