It is highly possible that the merciful ancestors desc removeed from a species that erstwhile had a scum bag. There are no real answers serious theories as to why humans pack a tail bone, tailb ace. It has been verbalise that the coccyx on a human is a fundamental frequency structure, import that it is the remains of a body part that we once may acquit had during the process of evolution. Like the name aim the tail raise could of real well(p) have been a tail at iodin time. It is unclear as to how foresightful it would have developed or grown. Which begs the question, did humans ever have a protruding tail? To understand that theory we have to understand the coccyx. The coccyx is alike cognise as the human tailbone. It is a small, triangular bone located at the dishonor end of the vertebral column. The coccyx it attached at the end of the sacrum through a vestigial disc and is as well connected to the sacrum with ligaments. There is very exc eptional movement mingled with the coccyx and the sacrum. The small coccyx consists of common chord to quintette (most often four) coccygeal vertebrae that usually begun fusing by the days of 26. The coccyx provides an bond site for a number of ligaments and for musclebuilder that constricts the anal retentive opening. The first two coccygeal vertebrae have transverse processes and unfused vertebral arches.
The prominent laminae of the first coccygeal vertebra are known as the coccygeal cornua; they curve the meet the cornua of the sacrum. The coccygeal vertebrae do not complete their fusion until late in with child(p)ho od. In males, the adult coccyx points ante! riorly, whereas in females, it points inferiorly. In very fourth-year people, the coccyx may fuse with the sacrum. (Martini et al. 168). Only about five percentage of the populations have a coccyx in one piece, collapse from the sacrum. The anterior surface of the coccyx is slightly concave. It is also label with three transverse grooves which indicate the junction of contrasting segments. It gives attachment to the anterior sacrococcygeal ligament...If you want to get a fully essay, ordinance it on our website: BestEssayCheap.com
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