Term Name:	apical-basal axis relative to substrate
Synonyms:	apical/basal, longitudinal axis
Definition:	An axis that extends through an organism or organism part from the part of the organism or organism part attached to a substrate (basal) to the furthest from the attachment (apical). Note that the apical-basal axis is often used for organismal parts where there is attachment via a basal lamina or other structure.
Ontology:	Spatial Ontology [BSPO:0000014]