Anatomical dissection of 41 human hearts reveals that the A-V node, bundle, and bundle branches grow more slowly than the rest of the myocardium with advancing age.
The A-V node, bundle and bundle branches were grossly dissected in 41 human hearts. The method for this dissection is described. Given also are the sizes of the individual structures with advancing age. These structures grow more slowly than the remainder of the myocardium.
Widran et al. (Sat,) studied this question.