Saturday, November 19, 2011

How is the human skeleton like that of a chimpanzee skeleton? What's the major difference?

How is the human skeleton like that of a chimpanzee skeleton? What's the major difference?|||There is a one-to-one correspondence between bones.





The human knee and pelvis are structured differently for upright walking.|||there are a few major differences between the two.





the major difference is that the Foreman Magnum(the place where the spinal chord meets the skull) is located directly below the skull in humans, where as in chimps, it is located towards the back of the head. being directly underneat the skull indicated bipedalism, which humans are and chimps are not, hence the location of the foreman magnum.





the second (this is not on the skull but just a good fyi) is that because humans are bipedal, their knees are stronger then those of chimps, as well as the shape of the human pelvis gets narrower towards the bottom to support our upright position(this is also why child birth is so painful btw)


(haha now one about the skull) a third difference is that humans forehead is more verticle then the chimpanzee skull - the chimps skull slopes backwards more. this means that the brain case in humans is larger, because there is more room for the brain. because the chimps forehead slopes back, it limits the amount of space that the brain can occupy, thus making the brain smaller.


last but not least, the teeth. the teeth on a chimpanzee are longer, and the canines are sharper, where as humans have nearly completly flat teeth, and reletively small teeth. the larger teeth indicate using your teeth for a weapon, as well as needing them for hunting, which are things that humans do not use their teeth for, hence the more flat shape.

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