prefrontal cortex
2006-07-08 18:18:05
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answer #1
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answered by cheezychesster 2
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The neocortex. Human encephalization is especially pronounced in the neocortex, the most complex portion of the cerebral cortex. Singular among those of all animals, the human brain possesses the largest and most massive neocortex. Humans thus enjoy unique neural capacities despite the fact that much of the human neuroarchitecture resembles that of more primitive species. Basic systems that alert the nervous system to stimuli, sense events in the environment, and monitor and maintain the internal environment of the body (homeostasis) are similar in some ways to those of the most basic vertebrates. Human consciousness involves both the extended capacity of the modern neocortex in particular as well as profoundly developed prototypical structures of the brain stem. But the human brain is unique, in part, because it relies on some million billion synaptic connections, making it an extremely intricate and densely connected neural network.
2006-07-08 21:02:30
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answer #2
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answered by Anonymous
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There are many vestigial features, but evolution doesn't tolerate uselessness. When a structure loses its importance, like our wisdom teeth, our appendix, some of our toes, our tail bones, etc. it retains secondary functions and can sometimes develop new functions. These features no longer serve their original purposes, and some are drifting out of the genetic mix (like wisdom teeth), others still serve secondary functions (muscle attachments on the tailbone aid in walking and sitting), and some will likely develop new functions though that is something we can't really see until the process has finished. Belly buttons are NOT a useless feature, they are not a "feature" as all, they are a scar left from an embryological necessity (umbilical cords), totally different thing.
2016-03-26 22:15:36
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answer #3
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answered by ? 4
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The cerebral cortex is the most recently evolved region of the human brain and it is where all high-order cognitive functioning takes place. This is the center of the brain where our self-image and perspective is created.
Only the human brain has evolved to this level; as the human brain evolved, something remarkable happened. The brain, with its great perceptual powers, began to perceive its own existence.
This ability is what makes us human.
2006-07-08 21:48:00
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answer #4
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answered by Foolhardysage 2
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The ability to oppose our thumbs at least puts us in the primate category, then the lack of hair on the organ of our skin adds to the illusion that we are human and different from the primates. Then we add the parts of our brain and organ systems that are farther developed.
All in all it is in our DNA, which is in all of our organs and cells which make us most human.
2006-07-09 04:04:21
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answer #5
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answered by PreviouslyChap 6
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the thumb on the hand-some people might say brain but even the mentally handicapped can function over many animals with many activities because of having thumbs, 2nd is the brain giving us the edge on chimps and other primates who have thumbs.
2006-07-08 18:00:16
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answer #6
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answered by The Riddler 3
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The parts of our brain that allow us to reason differentiate us from other mammals, who basically have the same set of organs.
2006-07-08 17:58:28
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answer #7
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answered by Flyboy 6
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The brain
2006-07-08 17:59:35
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answer #8
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answered by Report Abuse 6
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Mind. It is a manifestation of functioning brain.
2006-07-08 21:25:48
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answer #9
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answered by J.SWAMY I ఇ జ స్వామి 7
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cerebral cortex of the brain
2006-07-08 20:51:58
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answer #10
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answered by captaincaknucklehead 2
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It is the end of the small intestine (the Exit)
2006-07-08 17:58:38
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answer #11
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answered by Augie 6
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