comment added over 4 years ago by Istvan Miko
The area is the part of an anatomical structure that is flattened (PATO:0002254 "A quality inhering in a bearer by virtue of the bearer's surface becoming more extended in a plane.") and is delimited by planes that are perpendicular to the "extended surface" of the anatomical structure. "extended surface" is the anatomical surface that extends along the more extended side of the anatomical structure. The planes that delimits the area correspond either with a material anatomical entity or with an anatomical line drawn in between two material anatomical entities. Area can be hence the part of anything that is flattened, i.e. cuticle, epidermal cell layer, integument, wall of a gland. Invaginations and evaginations are typical examples of area. They are defined by the border between the adjacent convex/straight/concave areas. For the correct definition of area we should create a class for flattened anatomical structures. Having the class "flattened anatomical structure" can be very useful from other reasons. e.g. the developemnt of any flattened structure might requires 2D cell divisions.
Reference: Miko, I. 2009. -2014 Curator. Hymenoptera Anatomy Ontology.
Cross reference: None provided.