Subdivision of an organism along anterior-posterior axis that is the posteriormost region, extending past the anus (or cloaca, if present), consisting of a tail in some fully formed chordates (or a tail bud in embryos). In animals that have a sacral region, this is the region immediately posterior to this. [ http://orcid.org/0000-0002-6601-2165 ]
Term information
- XAO:0000087
Subdivision of an organism along anterior-posterior axis that is the posteriormost region, extending past the anus (or cloaca, if present), consisting of a tail in some fully formed chordates (or a tail bud in embryos). In animals that have a sacral region, this is the region immediately posterior to this.
We follow XAO is distinguishing the tail region from the tail; the tail bud is part of the tail region; the tail starts after the tail bud
Term relations
- subdivision of organism along main body axis
- has skeleton some caudal region of vertebral column
- part of some posterior region of body
- posterior_to some anus