Which of the following statements is incorrect?
- AHeart is endodermal in origin
- BHuman heart is situated between the two lungs,slightly tilted to the left
- CHeart is a double-walled membranous bag
- DHuman heart has two atria and two ventricles
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The cardiac impulse,which causes the heartbeat,is delayed in which of the following?
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View SolutionMuscular ridges at the inner surface of the ventricles are called:
Given below are two statements.
Statement $I$: Visceral layer of serous pericardium forms the outer wall of human heart.
Statement $II$: Epicardium is formed of a thick layer of cardiac muscles.
In the light of the above two statements,choose the correct answer from the options given below.
Statement $I$: Visceral layer of serous pericardium forms the outer wall of human heart.
Statement $II$: Epicardium is formed of a thick layer of cardiac muscles.
In the light of the above two statements,choose the correct answer from the options given below.
Autorhythmicity is a special property of the muscles of the
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