Table 3. S/E (segments/elements ratio) in each order of vessels.

ORDER	S/E	N
6	4.20 ± 0.73	15
5	3.50 ± 0.59	27
4	3.40 ± 0.36	63
3	1.90 ± 0.12	115
2	1.30 ± 0.05	160
1	1.00 ± 0.02	182

Values are means ± SEM

N = number of vessels observed for each arteriolar order. S/E is the ratio of the total number of segments in a given order to the total number of elements in that order. This ratio is also the average number of vessel segments in series for each order of vessels