Table 1.

Percentage of axonal branches with boutons in passage analyzed in terminal axonal branches (after the last branch point)

	Rostral		Caudal
	N branches	Boutons in passage (%)	N branches	Boutons in passage (%)
Contralateral MSO
94–69	95	44	71	51
94–89	96	46	93	55
Ipsilateral MSO
94–69	41	32	36	50
94–89	22	50	54	67