http://en.wikipedia.org/wiki/Coccyx
Function
In humans and other tailless primates (e.g., great apes) since Nacholapithecus (a Miocene hominoid),the coccyx is the remnant of a vestigial tail, but still not entirely useless;it is an important attachment for various muscles, tendons and ligaments—which makes it necessary for physicians and patients to pay special attention to these attachments when considering surgical removal of the coccyx.
Function
In humans and other tailless primates (e.g., great apes) since Nacholapithecus (a Miocene hominoid),the coccyx is the remnant of a vestigial tail, but still not entirely useless;it is an important attachment for various muscles, tendons and ligaments—which makes it necessary for physicians and patients to pay special attention to these attachments when considering surgical removal of the coccyx.
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