Originally posted by Astr0
Originally posted by Xcathdra
reply to post by burntheships
Explain why humans have an apendix and what its for. Might help you understand what might be going on.
The appendix is a storage and production area for the bacteria the gut needs to thrive and be healthy. No appendix equals a major loss of this healthy bacteria and adds to the woes (along side surgical intervention and associated body trauma).
...and was a key component in helping humans survive way back in the day when rocks and other items were very much a part of what we ate.
The vermiform appendix is a vestige of the cecum, an organ that would have been used to digest cellulose by humans' herbivorous ancestors.
coccyx - or tail bone, which no logner serves any purpose to the human body.
occipitofrontalis muscle - used now for smilking, but origionally used to kepp humans from falling.
Goosebumps - vestigial response. Ancestors used it to raise body hair, mkaing them appear larger
There are also vestigial molecular structures in humans, which are no longer in use but may indicate common ancestry with other species. One example of this is L-gulonolactone oxidase, a gene, that is functional in most other mammals, which produces an enzyme that can make vitamin C. A mutation deactivated the gene in an ancestor of the current group of primates, and it now remains in the human genome as a vestigial sequence called a pseudogene.
As with all animals, we evolve and adapt to new and changing enviornments. Logic would dictate that as we change what we eat based on new discoveries that become a part of our diet, our body will adapt to those changes in an effort to find the best way to make use of and digest.