SEM, TEM, and IHC Analysis of the Sinus Node and Its Implications for the Cardiac Conduction System

<table>Sinus node (SN) cells. The SN typical cell types (P: pale cells, T: transitional cells, Sl: fibroblast-like cells, and Cap: capillary vessel; HE ×600).</table>

Anatomy Research International

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Figure 3

Figure 3: SEM, TEM, and IHC Analysis of the Sinus Node and Its Implications for the Cardiac Conduction System 