Consider statements about the human heart: 1. The left ventricle has the thickest wall. 2. The tricuspid valve is between the left atrium and ventricle. 3. The SA node is the natural pacemaker. Which are correct? MCQ with Answer and Explanation
Consider statements about the human heart: 1. The left ventricle has the thickest wall. 2. The tricuspid valve is between the left atrium and ventricle. 3. The SA node is the natural pacemaker. Which are correct?
A. 2 and 3 only
B. 1, 2 and 3
C. 1 and 3 only
D. 1 and 2 only
Answer: Option C
Solution (By JKSSB Mock Tests)
The left ventricle has the thickest muscular wall to pump blood at high pressure into the systemic circulation. The sinoatrial (SA) node generates impulses spontaneously, acting as the natural pacemaker. The tricuspid valve is located between the right atrium and right ventricle; the bicuspid (mitral) valve is on the left side. Thus, statements 1 and 3 are correct.
Explanation:
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Explanation:
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Explanation:
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