Skip to main content
. 1999 Aug 31;96(18):10428–10432. doi: 10.1073/pnas.96.18.10428

Table 1.

Relative abundance of sex steroid-accumulating cells in the manakin spinal cord

Spinal cord region Bird no. Ventral
Middle
Dorsal
M F M F M F
High cervical 1 + + +
2 + + +
3 +
4 + +
5
Cervical enlargement 1 + ++ ++
2 +++++ ++ +++
3 + ++
4 +++
5
Mid thoracic 1 +
2
3 + + ++
4 +
5
Lumbasacral enlargement 1 ++
2 +
3 +++++ ++ +
4 + +++ ++
5

M, male; F, female; −, no cells; +, 1–5 cells; ++, 16–50 cells; +++, 51–100 cells; ++++, 101–200 cells; +++++, 201–224 cells.