The developmental growth that results in the elongation of a line that defines polarity or symmetry in an anatomical structure. [ GOC:tb GOC:ascb_2009 GOC:dph ]
This is just here as a test because I lose it
The developmental growth that results in the elongation of a line that defines polarity or symmetry in an anatomical structure. [ GOC:tb GOC:ascb_2009 GOC:dph ]