Table 2.

Summary of morphological data

Cell	Segment	Soma position	Soma diameter (μm)	Shape of dendritic tree	Extent of dendritic tree (μm)		Axonal projection		Locations of terminals			Contacts with ChAT-labeled profiles
Cell	Segment	Soma position	Soma diameter (μm)	Shape of dendritic tree	M-L/D-V	R-C	IL	XL	IL	XL	R-C extent	Contacts with ChAT-labeled profiles
Glutamatergic
1	L₄	Mid IV	25	Laterally and dorsally directed	½ to ⅓ extent; III–IV	480	dLF r + c		IV–V	IV–V	1020
2	L₄	Mid IV	20 × 30	Dorsoventrally directed	⅓ M-L extent; I–II border–V	480	dLF r + c	O	IV–VII		600
3	L₄	Mid IV	20	Dorsally directed	⅓ M-L extent; I–II border–IV	800	dLF c	O	III–VII		900
4	L₄	Lat IV	20	Dorsolaterally directed, M-L restricted	Narrow cone of Lat gm; II–IV	600	dLF r + c	O	III–VII		780
5	L₅	Mid IV–V border	20 × 25	Mainly dorsally directed	Medial ½; III–dorsal IV	480	DC c		IV–VI		900
Glycinergic
6	L₃	Lat IV–V border	35	Restricted dorsally	Entire M-L extent, into dLF; III–IV	840	LF r + c	VF r + c	IV–IX	VII–VIII	1200	Yes
7	L₄	Lat IV–V border	20 × 10	Mainly dorsally directed	Over ⅔ M-L extent, into dLF; IV–Lat VII	*	LF r	VF c	IV–IX	VII–IX	480	Not tested
8	L₅	Lat IV	20 × 10	Mainly dorsally directed	Restricted M-L to narrow band; I–II border–IV	900	dLF r	O	IV–VII		1200	Not tested
9	L₅	Lat IV–V border	20 × 30	Restricted dorsally	Lateral ½ M-L, into dLF; IV–VI	540	LF r + c	VF r + c	IV–IX	IV–VIII	2100	Not tested
10	L₅	Lat IV–V border	40	Radial	Lateral ½, into dLF; II–III border–V	600	LF r + c	VF c	IV–IX	VII–IX	1020	Yes
11	L₅	Mid V	40	Restricted dorsally	Entire M-L extent, into LF; IV–VI	780	LF c	VF r + c	IV–IX	VII–IX	1080	Yes
12	L₅	Lat V	25	Restricted dorsoventrally	Entire M-L extent, into dLF; IV–VI	650	O	VF r + c	II–VIII	VII	720	Not tested
13	L₅	Lat V	25 × 40	Restricted dorsoventrally	Lateral ¾), into dLF; IV–VI	540	LF r + c	VF c	V–VII	VIII	600	Not found

M-L, Mediolateral; D-V, dorsoventral; R-C, rostrocaudal; IL and XL, ipsilateral and contralateral; Mid, central; Lat, lateral; DC, dorsal columns; 0, no projection; LF, lateral fasciculus; VF, lateral fasciculus; dLF, dorsal part of lateral fasciculus; r, rostral; c, caudal;*, rostrocaudal extent not determined