Table 1.

PTNs recorded in different subjects

Cat No.	Sex	Mass, kg	Shoulder Related	Elbow Related	Wrist Related	Nonresponsive	Total
1	Male	3.9	7	4	1	4	16
3	Female	3.0	2	1	1	2	6
4	Male	3.8	3	5	2	6	16
7	Female	2.7	13	5	10	6	34
8	Male	4.5	8	2	9	4	23
9	Male	3.9	5	8	5	4	22
11	Female	3.7	5	1	8	4	18
12	Male	4.0	2	4	4	0	10
Total (n = 8)			45	30	40	30	145

PTN, pyramidal tract neuron.