no D with no surface
0D with no surface
1D with 0D surface
2D with 1D surface
3D with 1D surface
3D with 2D surface
4D with 2D surface
4D with 3D surface
5D
6D
7D
8+ D
Esoteric spaces
See also: List of mathematical topics
... excretory function in both sexes, to pass urine to the outside, and also a reproductive function in the male, as a passage for sperm. The external urethral sphincter ...