What is the tail bone or coccyx (on spinal cord) for?
Answers:
The posterior surfaces [of the coccyx] serve as attachments for the gluteus maximus muscle and the sphincter and externus muscles. The gluteus maximus muscle is essential for defecation and labor during childbirth. The sphincter ani externus muscle is needed to keep the anal canal and orifice closed. These are obviously very important functions. The interior surfaces of the coccygeal vertebrae also serve as important attachments for muscles that aid in the containment of feces within the rectum . . . [as well as control of] defecation, and the expulsion of the fetus during labor.
it is a vestigial organ like the appendix. in other words, it has no use. the body uses it as an attachment for ligaments, but it could use the sacrum for that. not a very useful tool to have in your body if you dont have a tail.
to protect the spinal cord as all vertabrae is intended to do. these are by the way the sacral bones,s1 and s2 , the sacral bone sits on top of the coccyx bone.
It is a leftover from when we swam in the ocean and needed support for our tail.
The spinal cord is responsible for all motor and sensory communications to and from the brain,to every organ and cell of the body.If it becomes damaged or diseased,the body functions below the injury usually cease to function. The "tail bone" is a leftover,it would still be necessary if we had a tail. SW RNP
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