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List of animals by number of neurons : ウィキペディア英語版 | List of animals by number of neurons This is a list of representative animals by the number of neurons in their whole nervous system and the number of neurons in their brain (for those with a brain). These numbers are estimates derived by multiplying the density of neurons in a particular animal by the average volume of the animal's brain. ==Overview== Neurons are the cells that transmit information in an animals nervous system so that it can sense stimuli from its environment and behave accordingly. Not all animals have neurons; ''Trichoplax'' and sponges lack nerve cells altogether. Neurons may be packed to form structures such as the brain of vertebrates or the neural ganglions of insects. The number of neurons and their relative abundance in different parts of the brain is a determinant of neural function and, consequently, of behavior.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「List of animals by number of neurons」の詳細全文を読む
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