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….. Muscles contract when the external i...

….. Muscles contract when the external intercostal muscles contract

A

Internal abdominal

B

Jaws

C

Muscles in bronchial wall

D

Diaphragm

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CHETANA PUBLICATION-Respriration and circulation-EXCERCISE
  1. …… is a sound producing organ,

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  2. The maximum volume of gas that is inhale during breathing in addition ...

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  3. ….. Muscles contract when the external intercostal muscles contract

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  4. Movement of cytoplasm in unicellular organisms is called……

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  5. Which of the following animals do not have closed circulation?

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  6. Diapedesis is performed by…..

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  7. Pacemaker of heart is …… .

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  8. Which of the following is without nucleus?

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  9. cockroach shows which kind of circulatory system?

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  10. Diapedesis can be seen in …. Cell.

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  11. Opening of inferior vena cava is guarded by ….

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  12. …. wave in ECG represents atrial depolarization.

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  13. The fluid seen in the intercellular spaces in Human is….

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  14. Select the correct alternative and write the answer: Erythrocytes of t...

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  15. Select the correct alternative and write the answer: During systole

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  16. Select the correct alternative and write the answer: Thickening of art...

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  17. Answer the following questions: Name any one main lymphatic duct.

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  18. Answer the following questions: Name any pace maker of human heart.

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  19. Answer the following questions: Where is mitral valve present in the h...

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  20. Define erythropoiesis.

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