A subdivision of an organism along the anterior-posterior axis in the pelvic region immediately posterior to the lumbar region and anterior to the caudal region. Sometimes an intermediate region is defined between the sacral and caudal. [ http://orcid.org/0000-0002-6601-2165 ]
Synonyms: regio sacralis sacral part of pelvis posterior part of pelvis back of pelvis pelvic back
Term information
- SCTID:182344001
- Wikipedia:Sacrum
- FMA:24228
Amphibians - 1 sacral vertebra; Living reptiles & most birds - 2 sacral vertebrae; Most mammals - 3 to 5 sacral vertebrae. TODO - split sacral from sacrococcygeal
Term relations
- subdivision of organism along main body axis
- has part some sacral region of vertebral column
- part of some pelvic region of trunk
- has skeleton some sacral region of vertebral column