front matter 1

Infant, 4 Months CR 440 mm Y286-62 Middle Thoracic Myelin stain Central canal .0040 Ependyma .0062 Gray matter 2.8387 White matt ...

Sp in oc ep h a li c tr a c t s Sp in oc ep h a li c tr a c t s VVentral funiculusentral funiculus Ventral gray Ventral gray Int ...

Infant, 4 Months CR 440 mm Y286-62 Middle Thoracic Cell body stain Central canal .0031 Ependyma .0117 Gray matter 2.8799 White m ...

VVentral funiculusentral funiculus Ventral horn motoneurons Ventral horn motoneurons Ventral horn interneurons Ventral horn inte ...

Infant, 4 Months CR 440 mm Y286-62 Lower Thoracic Myelin stain Central canal .0090 Ependyma .0091 Gray matter 4.0248 White matte ...

Sp in oc ep ha li c tr a c ts Sp in oc ep ha li c tr a c ts VVentral funiculusentral funiculus Ventral gray Ventral gray Interme ...

Infant, 4 Months CR 440 mm Y286-62 Lower Thoracic Cell body stain Central canal .0073 Ependyma .0160 Gray matter 4.2476 White ma ...

VVVentral funiculusentral funiculusentral funiculus Ventral horn motoneurons Ventral horn motoneurons Ventral horn interneurons ...

Infant, 4 Months CR 440 mm Y286-62 Upper Lumbar Myelin stain Central canal .0140 Ependyma .0155 Gray matter 9.5065 White matter ...

Myelinated fibers in Clarke's column Myelinated fibers in Clarke's column Spin oc ep ha li c tr a c ts Spin oc ep ha li c tr a c ...

Infant, 4 Months CR 440 mm Y286-62 Upper Lumbar Cell body stain Central canal .0086 Ependyma .0270 Gray matter 9.8606 White matt ...

VVentral funiculusentral funiculus Ventral horn motoneurons Ventral horn motoneurons Ventral horn interneurons Ventral horn inte ...

Infant, 4 Months CR 440 mm Y286-62 Lumbar Enlargement Myelin stain Central canal .0180 Ependyma .0187 Gray matter 17.7370 White ...

Sp in o ce p h al ic t ra c t s Sp in o ce p h al ic t ra c t s VVentral funiculusentral funiculus Ventral gray Ventral gray Int ...

Infant, 4 Months CR 440 mm Y286-62 Lumbar Enlargement Cell body stain Central canal .0115 Ependyma .0231 Gray matter 18.3550 Whi ...

VVentral funiculusentral funiculus Ventral horn motoneurons Ventral horn motoneurons Ventral horn interneurons Ventral horn inte ...

VI. Three-Dimensional Reconstructions of the Developing Spinal Cord A. The cervical level of eight fi rst–trimester specimens Th ...

AABBBCCC DD EE FF GG HH CR 3.3 mm CR 4.0 mm CR 8.0 mm CR 10.5 mm CR 19.1 mm CR 22.0 mm CR 36.0 mm CR 56.0 mm 0.25 mm 1 mm 1 mm 1 ...

A B CR 3.3 mm, C6144 CR 4.0 mm, C836 0.25 mm 0.5 mm 0.5 mm Floor plate Roof plate Central canal U n d iv id e d n e u or e p ti ...

CR 8.0 mm, M2065 CR 10.5 mm, C6517 A B CR 8.0 mm, M2065 CR 10.5 mm, C6517 0.5 mm 1 mm Floor plate Roof plate Central canal U n d ...