Table 2.

Number of labeled motoneurons after the injection of retrotracer into the PCA and TA muscles

Group		Control 1	Control 2	Control 3	1 wpi	2 wpi	4 wpi	8 wpi	12 wpi
No. of neurons	PCA	41 ± 8 (± 12)	40 ± 11 (± 20)	25 ± 12 (± 23)	165 ± 23 (± 56)	87 ± 24 (± 58)	35 ± 22 (± 38)	46 ± 14 (± 38)	40 ± 6 (± 14)
	TA	31 ± 4 (± 11)	35 ± 5 (± 9)	1.5 ± 1.5 (± 3)	14 ± 7 (± 16)	55 ± 20 (± 48)	75 ± 3 (± 6)	31 ± 10 (± 30)	34 ± 13 (± 31)

Data are expressed as mean ± SE; in parentheses are SD values.

PCA, posterior cricoarytenoid; TA, thyroarytenoid; wpi, weeks post-injury.