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Heart beats are affected by-...

Heart beats are affected by-

A

Oxygen

B

`CO_2`

C

Vagus nerve

D

All of these

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NCERT TELUGU-TRANSPORTATION-MEDICINE ORIENTED MATERIAL
  1. Heart of crocodile is-

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  2. 13 chambered heart is present in

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  3. Heart beats are affected by-

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  4. Which of the following has no muscular wall?

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  5. Fill in the blanks: The pulse beat is measured by the blood vessel.

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  6. Fill in the blanks: Carotid artery carries blood to anterior region o...

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  7. Fill in the blanks: Blood leaving lungs is rich in gas.

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  8. Fill in the blanks: If heart of a mammal is injected with 2% CaCl2 so...

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  9. Fill in the blanks: The heart of a healthy human being beats times pe...

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  10. Fill in the blanks: The approximate number of capillaries in human bod...

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  11. Which of the following has closed circulatory system ?

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  12. Write your observation of blood flow in arteries and veins?

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  13. Fill in the blanks: The auriculo ventricular node in human beings was...

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  14. Where are the valves located in human heart? Write their names?

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  15. Fill in the blanks: The maximum efficiency of heart is .

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  16. The ion useful in the muscle contraction is

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  17. Fill in the blanks: The inferior venacava collects blood from and .

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  18. Fill in the blanks: The wall of dorsal aorta is in nature.

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  19. Fill in the blanks: During the auricles and ventricles contract sepa...

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  20. Fill in the blanks: During ventricular diastole the relax.

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