Table 1.

Size data on 13 threadlike structures from rats

Subject number	Strain	Sex	Weight (g)	W (mm)	D (µm)	d (µm)	N	L × ℓ (mm × mm)
1	Wist	M	240	0.36	20	9	3	0.23 × 0.13 0.27 × 0.13 0.30 × 0.10
2	Wist	M	250	0.21	27	20	0
3	Wist	M	250	0.19	62	14	1	0.29 × 0.14
4	Wist	M	250	0.2	120	40	1	0.80 × 0.20
5	SpD	M	140	0.21	80	28	0
6	SpD	M	150	0.26	46	17	1	0.27 × 0.15
7	Wist	M	185	0.29	93	20	1	0.49 × 0.21
8	Wist	M	190	0.23	30	14	1	1.47 × 0.13
9	Wist	M	180	0.16	53	22	1	0.91 × 0.24
10	Wist	M	160	0.23	30	22	1	1.0 × 0.05
11	Wist	M	175	0.25	50	13	0
12	Wist	F	150	0.15	30	10	3	0.53 × 0.29 0.42 × 0.08 0.08 × 0.06
13	Wist	M	170	0.4	33	12	1	0.22 × 0.13
Average			192	0.24	52	19	1.3	0.52 × 0.15
Std			41	0.07	30	9	0.9	0.39 × 0.07

The abbreviations are as follows: Wist, Wistar; SpD, Sprague-Dawley; W, diameter of lymphatic vessel; D and d, diameter of the thickest and the thinnest parts of a threadlike structure, respectively; N, number of observed corpuscles; L and ℓ, long and short diameters of oval-shaped corpuscles.