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Where does the atrioventricular bundle (AV bundle) emerge from after passing through the atrioventricular septa?
- a)Left atrium
- b)Interventricular septum
- c)Right ventricle
- d)Pulmonary artery
Correct answer is option 'B'. Can you explain this answer?
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Where does the atrioventricular bundle (AV bundle) emerge from after p...
The atrioventricular bundle (AV bundle) is a bundle of nodal fibers that continues from the atrioventricular node (AVN) and passes through the atrioventricular septa. It emerges on the top of the interventricular septum, where it immediately divides into a right and left bundle. These branches further propagate into minute fibers throughout the ventricular musculature of the respective sides, playing a crucial role in coordinating the electrical impulses that regulate the contraction of the ventricles.
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Where does the atrioventricular bundle (AV bundle) emerge from after p...
The Atrioventricular Bundle (AV Bundle)
The atrioventricular bundle, also known as the bundle of His, is a crucial component of the heart's conduction system. It plays a vital role in coordinating the contraction of the heart chambers.
Location and Emergence
- The AV bundle emerges from the atrioventricular node (AV node) after it passes through the atrioventricular septum.
- It travels down into the interventricular septum, which separates the right and left ventricles.
Pathway Through the Heart
- After exiting the AV node located in the right atrium, the AV bundle travels through the atrioventricular septum.
- Here, it divides into right and left bundle branches that extend into their respective ventricles.
Interventricular Septum
- The interventricular septum is a muscular wall that prevents the mixing of oxygenated and deoxygenated blood.
- The AV bundle's passage through this septum is essential for the conduction of electrical impulses, which leads to synchronized contraction of both ventricles.
Conclusion
- Thus, the correct answer to where the AV bundle emerges after passing through the atrioventricular septum is option 'B' - Interventricular septum.
- This structure is critical in maintaining the heart's rhythm and ensuring efficient blood pumping throughout the body.
The atrioventricular bundle, also known as the bundle of His, is a crucial component of the heart's conduction system. It plays a vital role in coordinating the contraction of the heart chambers.
Location and Emergence
- The AV bundle emerges from the atrioventricular node (AV node) after it passes through the atrioventricular septum.
- It travels down into the interventricular septum, which separates the right and left ventricles.
Pathway Through the Heart
- After exiting the AV node located in the right atrium, the AV bundle travels through the atrioventricular septum.
- Here, it divides into right and left bundle branches that extend into their respective ventricles.
Interventricular Septum
- The interventricular septum is a muscular wall that prevents the mixing of oxygenated and deoxygenated blood.
- The AV bundle's passage through this septum is essential for the conduction of electrical impulses, which leads to synchronized contraction of both ventricles.
Conclusion
- Thus, the correct answer to where the AV bundle emerges after passing through the atrioventricular septum is option 'B' - Interventricular septum.
- This structure is critical in maintaining the heart's rhythm and ensuring efficient blood pumping throughout the body.
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Where does the atrioventricular bundle (AV bundle) emerge from after passing through the atrioventricular septa?a) Left atriumb) Interventricular septumc) Right ventricled) Pulmonary arteryCorrect answer is option 'B'. Can you explain this answer?
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