Saturday, July 30, 2011

Ch.5 : Getting Ahead

Just like the beginning of most chapters in this book, the images described by Shubin are not pleasant but when he gets into detail about what he sees, it becomes very interesting. Its interesting how there are only 12 nerves that control our ability to bite, talk, move our eyes, and our whole head. The completely of the human brain is further described when he divides it into 2 categories of nerves called the trigeminal and facial nerves. The trigeminal nerves carry sensory information from our eyes and face and carries it back to brain, these same nerves also control our hearing and chewing food. Its also interesting to note how embryos from 2 completely different species can begin so similar but grow into separate organisms. We have come a long way in understanding our own bodies and other organisms in the world.

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