Table 2 Morphological data for normal facial nerve-innervated orbicularis oris and tibial nerve-innervated gastrocnemius.

From: Differences in pharmacodynamic responses to rocuronium in normal or injured orbicularis oris are associated with expression of acetylcholine receptor subunits

Muscle

Mean fiber cross section area (CSA, μm2)

Endplate surface area (ESA, μm2)

ESA/CSA

Orbicularis oris

301.85 ± 83.19*

148.39 ± 33.28*

0.53 ± 0.21*

Gastrocnemius

628.79 ± 47.15

251.82 ± 26.34

0.40 ± 0.06

  1. The size of the ESA was measured by analyzing the circumference of the total endplate region from transverse sections. The size of the mean fiber CSA was measured from longitudinal sections in the same way. Values are means ± standard deviation. Significant differences detected by the paired t-test. *P < 0.05 vs. gastrocnemius.
Back to article page