Morphology and Functional Anatomy of the Recurrent Laryngeal Nerve with Extralaryngeal Terminal Bifurcation

Table 3

Functional anatomy of posterior branches based on sound signal of motor activity.

Posterior branches of bifurcated RLNs	Bifid NaR	Signal positive (motor activity)	Signal negative (sensitive branch)
		(%)	(%)
Right RLNs posterior branches	18	3 (16.7)	15 (83.3)
Left RLNs posterior branches	28	1 (3.6)	27 (96.4)
Total posterior branches	46	4 (8.7)	42 (91.3)

NaR: nerve at risk.