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Though the heart is an involuntary organ...

Though the heart is an involuntary organ, the fibers are different from smooth muscles in possessing

A

striations

B

tendons

C

mitochondria

D

sarcoplasm

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The correct Answer is:
A
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TRUEMAN BIOLOGY-BODY FLUIDS AND CIRCULATION-Multiple Choice Questions
  1. Cardiac muscles are found in :

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  2. The bulk of the heart wall is

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  3. Though the heart is an involuntary organ, the fibers are different fro...

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  4. Musclar ridges on the interior surfacce of the atria are called

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  5. Foramen ovale is present only in the heart of embryos leading from the...

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  6. In mammals, the opening of postcaval in the right atrium is guarded by

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  7. Tricuspid valve is found in between

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  8. In which one of the following pairs, two terms represent the same thin...

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  9. Bicuspid valve (mitral) guards the opening inn mammals between:

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  10. The thick muscular projections on the walls of the ventricle are calle...

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  11. Which of the following organs has papillary muscles ?

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  12. In the heart of man, the mitral valve is attached to the papillary mus...

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  13. Which has the thickest walls :-

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  14. In mammalian embryo the pulmonary aorta communicates with carotico-sys...

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  15. Which term does not applied to human heart?

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  16. Heart of Heart is or Pace maker of the heart is

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  17. SA node is located in

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  18. Impulse originating from sinu-atrial node are transmitted to the

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  19. What happens when the pacemaker becomes nonfunctional ?

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  20. Given these structures of the conduction system of the heart 1. Bund...

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