Is the AVN a Patch of Neuromuscular Cells?

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Discussion Overview

The discussion centers on the nature of the atrioventricular node (AVN) in the heart, specifically whether it is best described as a patch of muscle cells, fibrous tissue, or neuromuscular cells. Participants explore the definitions and characteristics of the AVN, seeking clarity on its classification.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant asks for clarification on the AVN, presenting three potential descriptions: a patch of muscle cells, a patch of fibrous tissue, and a patch of neuromuscular cells.
  • Another participant provides a definition of the AVN, describing it as a section of nodal tissue that has characteristics of both muscle and nervous tissue.
  • A subsequent post questions if the AVN can be classified as "a patch of neuromuscular cells" based on the previous definitions.
  • One participant confirms that the AVN is indeed a patch of neuromuscular cells.

Areas of Agreement / Disagreement

While there is some agreement that the AVN can be classified as a patch of neuromuscular cells, the initial question regarding its classification remains somewhat contested, as other descriptions were also presented.

Contextual Notes

The discussion does not resolve the definitions of the AVN fully, as it presents multiple perspectives without a definitive conclusion on the classification.

Cheman
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Antrioventricular node...

What exactly is the AVN? I know what it does, but what is it? From all the sources I have read I have been told its 3 things:
a) a patch of muscle cells,
b) a patch of fibrous tissue,
c) a patch of neuromuscular cells,

Which is it?!? :smile:

Thanks in advance.
 
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What is the atrioventricular node?

* The atrioventricular (AV) node is a section of nodal tissue that lies on the right side of the partition that divides the atria, near the bottom of the right atrium.

http://biology.about.com/library/organs/heart/blatrionode.htm

What is a node?

* A node is a specialized type of tissue that acts like both muscle and nervous tissue. When nodal tissue contracts (like muscle tissue) it generates nerve impulses (like nervous tissue) that travel throughout the heart wall.

http://biology.about.com/library/organs/heart/blnode.htm
 
Does that therefore mean that it is "a patch of neuromuscular cells" if we refer to my previous list?
 
Yes it is a patch of neuromuscular cell.
 

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