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प्रश्न
Normal activities of the heart are regulated by ______________.
पर्याय
brain
brain
spinal cord
spinal cord
modified cardiac muscles
modified cardiac muscles
उत्तर
Modified cardiac muscles
Normal activities of the heart are auto-regulated by specialized muscles.
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संबंधित प्रश्न
Choose the correct answer:
Bundle of 'His' is found in ___________
The diagram given below represents the human heart in one phase of its activity. Study the same and then answer the question that follow:
Which part of the heart is contracting in this phase? Give a reason to support your answer.
Why is the SA node called the pacemaker of the heart?
Draw diagram of conducting system of human heart. Label SA node and bundle of His.
Draw labelled diagram of internal structure of human heart.
Label right atrium, mitral valve, left ventricle and pulmonary semilunar valve.
Write a function of Eustachian and tricuspid valve found in human heart.
______ are muscular ridges at the inner surface of ventricles.
____________ guards the left atrioventricular aperture in human heart.
In normal health condition, ventricular systole lasts for ______.
Mammalian lungs have enormous number of minute alveoli, which permits more ______.
Give reason:
Valves are present in the veins.
