Skip to main content
. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Heart Rhythm. 2012 Dec 11;10(4):585–591. doi: 10.1016/j.hrthm.2012.12.015

Figure 2.

Figure 2

Quantification of the tyrosine hydroxylase (TH)-positive nerves. A: A TH-stained left cervical vagus nerve (CVN). B: The TH-positive nerves identified by the software (red). C: The total nerve cross-sectional area as identified by the software. Only the area colored red was included as the nerve bundles. The area of panel B divided by the area of panel C was used to find the percentage of sympathetic fibers in the CVN. The objective lens in panels A, B, and C was 4×, with a calibration bar of 0.2 mm in length.