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प्रश्न
Give scientific reason.
Human heart is called as myogenic and autorhythmic.
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उत्तर
- The heart shows autorhythmicity because the impulse for its rhythmic movement develops inside the heart. Such a heart is called myogenic.
- During development, certain heart muscle fibres become autorhythmic (self-excitable) and begin to generate impulses.
- These autorhythmic fibres have two vital functions: they operate as a pacemaker and set the heart's beat.
- They also form a conducting system for the conduction of nerve impulses throughout the heart muscles.
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संबंधित प्रश्न
Fill in the blank with suitable word given below:
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Explain the following:
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The help of a well-labelled diagram describes the internal structure of the human heart.
State the Function: Bundle of His
State the function:
Bicuspid valve
Choose the Odd One Out:
Short answer question.
What is the role of papillary muscles and chordae tendinae in the human heart?
Name the heart valve associated with the major arteries leaving the ventricles.
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