spine, backbone
the axis of the skeleton situated dorsally in the median plane and supporting the skull superiorly in humans, while inferiorly it ends in the coccyx and is joined to the hip bones at the sacroiliac jo, on moodustunud reastikku paiknevatest paaritutest selgroolülidest: kaela-, rinna- , nimme-, ristluu- ja sabalülidest