I believe this sort of structure is called a vestigial structure (a left over remnant). The appendix is another vestigial organ.
A vestigial structure.
Some vestigial structures in human beings are:AppendixMale breast tissue and nipplesWisdom teethCoccyx (tailbone)Erector pili
Tailbone.
The coxxyx is the tailbone
coccyx
The coccyx IS the tailbone, and its length varies depending on the person.
tailbone of human
Some vestigial structures in human beings are:AppendixMale breast tissue and nipplesWisdom teethCoccyx (tailbone)Erector pili
The 'scientific' name for the tail bone is the coccyx.
The tailbone is the end of the spine.
The coccyx is what we refer to as the tailbone.
The word coccygeal is another name for the tailbone in a human's body. It is the last of the vertebral columns in the back.
Tailbone.
The coxxyx is the tailbone
tailbone of a human whale pelvis bone
The medical term meaning pertaining to the tailbone is coccygeal. The proper name for the tailbone is coccyx.
AnswerThe coccyx (pronounced kok-siks) (Latin: OS coccygis), commonly referred to as the tailbone, is the final segment of the human vertebral column. Source: Wikipedia
skeletalThe coccyx is a bone not an organ. It is the lower part of the spine commonly refered to as the tailbone.