mushroom body beta' anterior-posterior layer 2010-09-10T10:02:11Z This layer was originally defined as two different regions, anterior and posterior (Tanaka et al., 2008). It was later recognized that the same Kenyon cells innervate both parts of the layer, meaning it can be considered as one (anterior-posterior) layer (Aso et al., 2014). mushroom body beta' anterior layer mushroom body beta' posterior stratum mushroom body beta' posterior layer VFB:FBbt_00100269 mushroom body beta' anterior-posterior stratum FBbt:00100269 beta'-a beta'p betaa Anterior-most layer of the mushroom body beta' lobe. mushroom body beta' anterior stratum FBbt:00100271 beta'-p fly_anatomy.ontology beta'a betap mushroom body beta' lobe layer