AIIMS2011Zoology-Human Physiology
AIIMS 2011 Zoology Cardiovascular System Assertion Reason Question
Type: Assertion Reason-conceptual-Medium-Class 11
Assertion : S.A. node induces excitatory impulses in heart. Reason : S.A. node is self excitatory.
A
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C
Assertion is true but Reason is false
D
Both Assertion and Reason are false
Correct Answer
Option B
Detailed Explanation
Sinu-auricular node or S-A node is located in the wall of the right auricle.
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