The Segmental Morphometric Properties of the Horse Cervical Spinal Cord: A Study of Cadaver

Table 2

Areas and volumes of subcomponents of the cervical spinal cord segments (mean ± SE, 𝑛=5).

Area (mm^2)
Segment	GS	WM	GM	DH	VH	CC × 10^−3
𝐶1	132 ± 9.9^c	115 ± 9.8^b	16.5 ± 0.7^c	10.9 ± 0.7^a	5.6 ± 0.2^cd	58.9 ± 4.3^a
𝐶2	127 ± 8.5^c	115 ± 8.1^b	11.2 ± 0.6^e	6.6 ± 0.4^c	4.6 ± 0.2^e	58.1 ± 3.5^a
𝐶3	120 ± 7.5^c	111 ± 7.3^b	9.1 ± 0.3^f	5.2 ± 0.2^d	3.9 ± 0.2^e	59.1 ± 5.7^a
𝐶4	124 ± 8.6^c	115 ± 8.3^b	9.0 ± 0.3^f	5.1 ± 0.2^d	3.9 ± 0.3^e	53.3 ± 2.6^a
𝐶5	134 ± 8.7^c	123 ± 8.2^ab	10.3 ± 0.5^ef	5.5 ± 0.3^cd	4.7 ± 0.3^de	50.9 ± 5.8^ab
𝐶6	147 ± 10.4^bc	134 ± 9.8^ab	12.8 ± 0.6^d	6.6 ± 0.3^c	6.2 ± 0.4^c	48.7 ± 6.1^ab
𝐶7	169 ± 5.0^ab	147 ± 5.3^a	22.1 ± 0.4^b	9.5 ± 0.3^b	12.6 ± 0.4^b	38.3 ± 4.8^b
𝐶8	175 ± 8.0^a	147 ± 7.7^a	27.8 ± 0.6^a	11.5 ± 0.5^a	16.4 ± 0.4^a	37.1 ± 2.8^b
Volume (*cm^3, mm^3)
Segment	Arc*	Total	WM	GM	DH	VH	CC × 10^−3
𝐶1	5.7 ± 0.4^c	3884 ± 387^c	3402 ± 370^c	483 ± 30^c	319 ± 24^b	164 ± 9^c	1.7 ± 0.12^d
𝐶2	14.2 ± 1.5^ab	10040 ± 1187^a	9159 ± 1114^a	880 ± 80^b	521 ± 49^a	359 ± 34^b	4.5 ± 0.27^abc
𝐶3	17.1 ± 1.8^a	11693 ± 1679^a	10813 ± 1587^a	880 ± 99^b	502 ± 48^a	378 ± 54^b	5.6 ± 0.50^a
𝐶4	16.9 ± 1.8^a	11731 ± 1313^a	10884 ± 1247^a	847 ± 66^b	477 ± 36^a	370 ± 34^b	5.00 ± 0.33^ab
𝐶5	15.9 ± 1.8^ab	11207 ± 1268^a	10349 ± 1187^a	858 ± 82^b	465 ± 53^a	392 ± 36^b	4.2 ± 0.57^bc
𝐶6	14.6 ± 1.3^ab	10387 ± 972^a	9480 ± 915^a	906 ± 59^b	468 ± 36^a	439 ± 28^b	3.5 ± 0.58^c
𝐶7	11.7 ± 0.9^abc	8956 ± 670^ab	7790 ± 621^ab	1167 ± 61^a	503 ± 36^a	664 ± 32^a	2.1 ± 0.33^d
𝐶8	8.9 ± 1.0^bc	6462 ± 5887^bc	5441 ± 527^bc	1022 ± 65^ab	425 ± 41^ab	597 ± 25^a	1.4 ± 0.13^d
Mean CE		0.044	0.046	0.046	0.052	0.054	0.053

Gross sections (GSs), white matter (WM), grey matter (GM), dorsal horn (DH), ventral horn (VH), central canal (CC). *Segment volumes calculated using Archimedes’ principle after segmentation. Other volumetric measurements were obtained using the Cavalieri’s principle. Coefficient of error mean (mean CE) was calculated according to Sahin and Ergur (2006) [26].
^a–f: Different letters in the same column are statistically significant (Duncan test, 𝑃<0.05).