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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
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उत्तर
Modified cardiac muscles
Normal activities of the heart are auto-regulated by specialized muscles.
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संबंधित प्रश्न
Which vein brings clean blood from the lungs into the heart?
Select the odd one in the following:
Artery, Vein, Capillary, Nerve.
The diagram given below represents the human heart in one phase of its activity. Study the same and then answer the question that follow:
How many valves are closed in this phase?
Given alongside is a diagram of the external features of the heart.
(i) Name the parts ‘1’ to ‘7’.
(ii) What happens if the coronary artery gets an internal clot?
(iii) Which type of blood does part ‘5’ carry?
(iv) Mention one structural difference between part ‘5’ and ‘4’.
Explain the Term
Electrocardiogram (ECG)
Give scientific reason.
Left ventricle is thick than all other chambers of heart.
The normal human heartbeat rate is about ______ time per minute.
What is the role of Paplillary muscles?
Ventricles give rise to two large blood vessels called ______ and ______.
Note the relationship between the first two words and suggest a suitable word/words for the fourth place:
Lub : Atrioventricular valves :: Dup : ______
