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The structural and functional unit of st...

The structural and functional unit of striated muscle fibres is…………. .

A

cross bridges

B

myofibril

C

sarcomere

D

z-bond

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CHETANA PUBLICATION-LOCOMOTION AND THEIR MOVEMENTS-EXERCISE
  1. The structural and functional unit of striated muscle fibres is…………. .

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  2. A person slips from the staircase and breaks his ankle bone. Which bon...

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  3. Muscle fatigue is due to accumulation of ………….

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  4. Swelling of sprained foot is reduced by soaking in hot water containin...

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  5. Role of calcium in muscle contraction is ……….

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  6. Hyper-secretion of parathormone can cause which of the following disor...

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  7. Locomotion in sperms takes place with the help of ………. .

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  8. Bones act as…………..during locomotion.

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  9. Sutures on the skull are………..joints.

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  10. Intervertebral disc consists of …… .

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  11. Slightly movable joints are also known as ………. .

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  12. Synovial fluid is present in …….. .

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  13. Two articulating bones are connected by …… .

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  14. Elbow joints are ………..joint.

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  15. Human body consists of about ……..different types of muscles.

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  16. Muscles attach to the bones with the help of ... .

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  17. Actin binding sites are located on ……… .

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  18. Coccygeal bone is formed by the fusion of……. bones in man.

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  19. Chemical ions responsible for muscle contraction are

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  20. The joint of radio-ulna with the upper arm is…….. .

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