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............. are small, narrow, and thi...

............. are small, narrow, and thin walled which are connected to the capillaries.

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Arterioles
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FULL MARKS-BODY FLUIDS AND CIRCULATION-ADDITIONAL QUESTIONS SOLVED ( Fill in the Blanks)
  1. The blood vessels that carry blood away from the heart are called........

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  2. All arteries carry except the pulmonary artery .

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  3. ............. are small, narrow, and thin walled which are connected t...

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  4. The ............... are the site for exchange of materials between blo...

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  5. The unidirectional flow of blood in veins is due to the presence of .....

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  6. Blood vessels that supply blood to the cardiac muscles are ..............

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  7. ........... circulatory system is seen in Arthropoda and most molluses...

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  8. he right atrium receives .............. blood.

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  9. The left atrium receives ................ blood.

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  10. The crocodile has a ................ chambered heart.

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  11. ..........guards the opening between the left atrium and left ventricl...

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  12. The myocardium of the ventricle is thrown into irregular muscular ridg...

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  13. The heart wall is made up of outer epicardium, middle myocardium and t...

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  14. The heart is covered by a double membrane called........

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  15. On the left side of the right atrium there is a node called..............

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  16. The rhythmic contraction and expansion of heart is called.............

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  17. The contraction of the chambers of the heart is called.............

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  18. The relaxation of the chambers of the heart is called.............

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  19. The 'lub'sound is associated with the closure of the............... Va...

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  20. The 'dub' sound is associated with the closure of..................val...

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