sacrum.
sacrum.
The anatomical term for tail bone is coccyx.
The human tailbone, or coccyx, is a triangular bone formation located at the base of the vertebral column. It is made up of four fused vertebrae and serves as an attachment site for ligaments and muscles that support the pelvis and lower back.
Coccyx
The "butt-bone" is scientifically referred to as the coccyx (pronounced cok-siks) I believe it is the remnants of when our evolutionary ancestors had a tail. Gradually, over the course of millions of years, the tail shrank until what remains to this day is the coccyx, or "tail-bone".
The coccyx (pronounced kok-siks)
tailboneTailboneThe coccyx is the tip of the human tail bone. At the base of the vertbrae, the last one and is slightly pointed. It is the last vertbrae in the buttox.Tailbone
The tail bone in humans is the vestigal coccyx bone, which extends from the end of the pelvic girdle in a straight line with the spine.
If you mean the tailbone, it is called the coccyx.
Coccyx.
Coccyx pronounced kok-six It reminds us that 'way back, we used to have tails, but they just got in the way when walking upright, so they got shorter and shorter over million of years, until just the coccyx remains. Will the coccyx ever disappear in humans? Hmmmm
That's the Coccyx.