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Pace maker (S.A. Node) of the heart is s...

Pace maker (S.A. Node) of the heart is situated

A

In wall of right atrium close to eustachian valve

B

On intra- auricular septum

C

On inter-venticular septum

D

In wall of left atrium close to the opening of pulmonary veins

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The correct Answer is:
A
Pace maker (SA node) which lies in the wall of the right atrium near the opening of the superior vena cava.
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ERRORLESS -BODY FLUIDS AND CIRCULATION-Body Fluids And Circulation
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  2. In order for the blood to flow right atrium to left ventricle in mamma...

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  3. Pace maker (S.A. Node) of the heart is situated

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  4. During systole

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  5. Right auricle of mammalian heart receive blood from

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  6. During ventricular diastole

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  7. The following figure shows human heart. Which labelled structure repre...

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  8. In humans, blood passes from the post caval to the diastomic right atr...

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  9. Open circulatory system is present in Arthropods (Insects) Anneli...

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  10. Blood enters the heart because muscles of the

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  11. The function of vagus nerve innervating the heart is to

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  12. An oval depression called fossa ovalis is seen on

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  13. Which of the following statements is related to Starling's law of hear...

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  14. Heart beats are accelerated by

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  15. JG cells, under low glomerular blood flow release

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  16. The triangular sac like structure which receives blood through the ven...

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  17. Which of the following parts of heart first receives deoxygenated bloo...

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  18. The duration of cardiac cycle is

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  19. Bundle of His is a part of which one of the following organs in humans

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  20. First heart sound occurs at

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