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Does an octopus have a peripheral nervous system?

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As outlined in Figure 2, the octopus nervous system, like other modern cephalopod nervous systems, is divided into three main parts. Two large foliage connected to the retina of the eye, like a highly developed camera. And the third and numerically 23окт. 2012г.



What kind of nervous system does an octopus have?

Octopus has an extensive nervous system, including more than 500 million neurons, the same number as dogs. However, unlike dogs and other vertebrates, where most of the neurons are in the brain, more than two-thirds of the octopus neurons are in the arms and body. 2020

Do all animals have a peripheral nervous system?

The nervous system is found in almost all multicellular animals, but its complexity varies greatly. The only multicellular animals that have no nervous system are sponges and fine, massive organisms called Placozoa and Mesozoa.

Do invertebrates have a peripheral nervous system?

However, invertebrates and vertebrates belonging to the bilateral symmetry animals can distinguish between the central nervous system (CNS) and the peripheral nervous system (PNS). CNS is a collection of nerve components organized into longitudinal or ring-shaped nerve cords, usually near the midline.

Does the octopus have a central nervous system?

Instead of a centralized nervous system like vertebrates, two-thirds of octopus neurons spread throughout the body and are distributed between the arms. And now scientists have determined that these neurons can make decisions without input from the brain.

Does an octopus have a peripheral nervous system?

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