be vestigial. These features serve no apparent purpose in the current organism but can be traced back to a functional role in its ancestors. Examples include wisdom teeth in humans and remnants of a tailbone.
The tailbone is the end of the spine.
of course they are useful. Tradition is what keeps your ancestors culture alive it's what makes you who you are.
The coccyx is what we refer to as the tailbone.
The medical term meaning pertaining to the tailbone is coccygeal. The proper name for the tailbone is coccyx.
Coccyx is the scientific name for the tailbone. The jawbone is called the mandible in scientific terms.
Examples of remnants of useful anatomical structures in humans include the appendix, which may have had a role in digestion in ancestral species but now serves no clear function, and the coccyx (tailbone), which is a vestigial structure from when our ancestors had tails for balance and communication. Other examples include wisdom teeth and the plica semilunaris in the eye.
An appendix in humans is a structure that seems to have little function, but it may have been more important in our ancestors for digesting cellulose. Similarly, the tailbone (coccyx) in humans is a remnant of a tail that was functional in our primate ancestors for balance and mobility.
Coccyx
The human tailbone, also known as the coccyx, is an example of a vestigial structure. It is a remnant of our evolutionary past when our distant ancestors had tails. Today, the coccyx serves no functional purpose in humans but is a small bone at the end of the spine.
the cocyx is the tailbone
Coccyx