It is one of the bone pieces found at the end of the spinal column, and whose main function is to provide a firm body for the tail of certain animals. It should be noted that in evolutionary periods of the most primitive human being, it used to have a tail (because it was a primate), so the coccyx developed a somewhat different structure than the one it already had, as a consequence of the disappearance of the tail. Similarly, some scientists from respected communities suggest that this bone does not have as crucial a function today as it used to do; even so, it is an important part of the bone system, since an injury in that area can cause serious problems in the gait of a common individual.
Regarding the physical appearance of the exponents of this type, it can be seen that it is an odd, short, symmetrical and central bone. At a certain point, it articulates with the sacrum, through a kind of fibrocartilaginous tissue, in addition to being under it. Exactly, the development of the tailbone occurs during the letter-eighth week period and serves as a support to keep some ligaments and tendons firm. Unlike the rest of the components of the spine, the tailbone is not designed to support the weight of the entire body mass, however it does support some of it, but in miniscule amounts.
The coccygeal vertebrae are some of the components that this piece of bone has, as well as the rudimentary transverse and articular processes. Some of your coccygeal vertebrae melt over the years. Most of the injuries that can be sustained in the coccyx are due to falls in which they land on the buttocks, or newborns can fracture their coccyx while they are in the exit canal.