![Wool fibre cross-section: paracortical and orthocortical cells.](http://static.sciencelearn.org.nz/images/images/000/000/984/full/cross_section_of_wool_fibre_large20160311-1520-1qydmyp.jpg?1674165236)
Cross-section of wool fibre showing paracortical and orthocortical cells – the arrangement of the cells creates the crimp in wool.
Cross-section of wool fibre showing paracortical and orthocortical cells – the arrangement of the cells creates the crimp in wool.