Whole Nervous System
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| Name | Neurons in the brain/whole nervous system | Details | Image | Source |
|---|---|---|---|---|
| Sponge | 0 | |||
| Trichoplax | 0 | |||
| Caenorhabditis elegans (roundworm) | 302 | ~ 5,000 synapses | ||
| Medicinal leech | 10,000 | |||
| Pond snail | 11,000 | |||
| Sea slug | 18,000 | |||
| Fruit fly | 100,000 | ~ 107 synapses | ||
| Lobster | 100,000 | |||
| Ant | 250,000 | Varies per species | ||
| Honey bee | 960,000 | ~ 109 synapses | ||
| Cockroach | 1,000,000 | |||
| Frog | 16,000,000 | |||
| Mouse | 75,000,000 | ~ 1011 synapses | ||
| Rat | 56,000,000 | 448 × 109 | ||
| Octopus | 300,000,000 | |||
| Cat | 1,000,000,000 | 1012–1013 synapses | ||
| Common Chimpanzee | 6,700,000,000 | |||
| Elephant | 23,000,000,000 | |||
| Human | 85,000,000,000 | For average adult; 1014–1015 synapses |
Read more about this topic: List Of Animals By Number Of Neurons
Famous quotes containing the words nervous and/or system:
“I cannot exaggerate the waste of the President’s time and the consumption of his nervous vitality involved in listening to congressmen’s intercession as to local appointments. Why should the President have to have his time taken up in a discussion over ... who shall be the postmistress of Devil’s Lake, in North Dakota? How should he be able to know ... who is best fitted to fill such a place?”
—William Howard Taft (1857–1930)
“The system was breaking down. The one who had wandered alone past so many happenings and events began to feel, backing up along the primal vein that led to his center, the beginning of hiccup that would, if left to gather, explode the center to the extremities of life, the suburbs through which one makes one’s way to where the country is.”
—John Ashbery (b. 1927)