front matter 1

mmcc ll

mmcc ll

vv

dd

rdrd

vv

dd

mmccc

vv

dd

m (medial)c (central)l (lateral)

*

v (ventral)

d (dorsal)

rd (retrodorsal)

PANELS

TIERS

*This panel includes the lateral and far lateral subdivisions

GRID KEY (based on Altman and Bayer, 2001)

1781

1

aut

10

11

12

13

14

15

MOTOR COLUMN KEY

Color

mv

(sections 1781-1901) AXIAL MUSCLES

PROXIMAL LOWER

LIMB MUSCLES

(HIP AND THIGH)

PROXIMO-DISTAL

LOWER LIMB MUSCLES

(KNEE AND LEG)

DISTAL LOWER

LIMB MUSCLES

(ANKLE AND FOOT)

ld, lv (sections 1781-1981)

cd (section 2021)

1d, lv (sections 1821-1981)

ld (sections 1861-1901)

1rd (sections 1941-1981)

ld, lrd

(sections 1861-2061)

lrd

(sections 1861-1981)

cd, ld

(sections 1861-1981)

edge of white matter

edge of gray matter

section

number

1821

1861

1901

1941

1981

2021

2061

2101

Lateral horn

(sections 1781-1821)

POSTGANGLIONIC

MOTONEURONS

1

10

aut

1010 1

11

aut

(^1212101011111)
(^131314)
15
1010 11 1
1212
13
14
15
1010
11
1212
13
14
15
1010
1111
1212
13
14
15
10
13
13
Lumbar and Sacral Sections of 3-D Model
Labeled Number (also in Figures 29C-30C)
Column (Panel and Tier)
Innervation (?)
LUMBAR
SACRAL
Figure 25. A continuation of the previous fi gure showing outlines of the sections used in the lumbar (1781-1981) and sacral (2021-2101) regions of the
spinal cord. Three of these sections are illustrated in the Atlas. Section 1821 is in Plate 35; section 1901 is in Plate 36, section 2061 is in Plate 37.
After fi xation, the total length of the lumbosacral part of the model is 11.2 mm. The lumbosacral part of the model is in Figures 29-30.
GW14, CR 108 mm, Y68-65 FIGURE 25