A non-material anatomical entity of two dimensions. Anatomical boundaries are contiguous structures. [ CARO:0000010 ]
术语信息
- AEO:0000192
- FMA:50705
- CARO:0000010
upper_level
Except in the case of abstracted fiat boundaries such as the midline plane of an organism, all 2D anatomical entities have a 3 dimensional projection. For example, the surface of the shell of a muscle has a distinct shape that projects into the third dimension. Note that boundaries are 2D structures. They have no thickness - and so can not be sites of gene expression or gene product localisation. For this, use boundary region terms.
A non-material anatomical entity of two dimensions. Anatomical boundaries are contiguous structures.