Question:
Identify the option showing the correct labelling for p, q, r and s with reference to the conducting system of the human heart.
Identify the option showing the correct labelling for p, q, r and s with reference to the conducting system of the human heart.
Updated On: Mar 29, 2025
- p- Interventricular septum, q-AVN, r-Bundle of His, s-SAN
- p-SAN, q-AVN, r-Bundle of His, s-Interventricular septum
- p-AVN, q-SAN, r-Interventricular septum, s-Bundle of His
- p-Bundle of His, q-SAN, r-Interventricular septum, s-AVN
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The Correct Option is B
Approach Solution - 1
The correct answer is (B) : p-SAN, q-AVN, r-Bundle of His, s-Interventricular septum.
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Approach Solution -2
The correct answer is: (B) p-SAN, q-AVN, r-Bundle of His, s-Interventricular septum.
The diagram shows the conducting system of the human heart. Here's the explanation for each label:
- p - SAN (Sinoatrial Node): The SAN is located in the right atrium and is responsible for initiating the electrical impulses that regulate the heart's rhythm.
- q - AVN (Atrioventricular Node): The AVN is located between the atria and ventricles and is responsible for transmitting the electrical impulses from the atria to the ventricles, ensuring proper timing of contractions.
- r - Bundle of His: The Bundle of His is located along the interventricular septum and transmits the electrical impulses to the left and right ventricles.
- s - Interventricular septum: The interventricular septum is the wall that divides the left and right ventricles, through which the electrical impulses pass to the Bundle of His.
Thus, the correct labelling is p-SAN, q-AVN, r-Bundle of His, s-Interventricular septum.
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