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Stack #4615860
| Question | Answer |
|---|---|
| nervous system | Coordinated circuits of cells that sense internal and environmental changes and transmit signals that enable an animal to respond in an appropriate way. |
| neuron | A highly specialized cell found in nervous systems of animals that communicates with other cells by electrical or chemical signals. |
| brain | Organ of the central nervous system of animals that functions to process and integrate information and to control the body's sensory and motor functions. |
| nerve | A structure found in the peripheral nervous system that is composed of multiple myelinated axons bound by connective tissue; carries information to or from the central nervous system. |
| central nervous system (CNS) | In vertebrates, the brain and spinal cord. |
| peripheral nervous system (PNS) | In vertebrates, all nerves and ganglia outside the brain and spinal cord. |
| the 2 unique classes of cells the nervous syetm has | neurons- functions in signaling glia- which have numerous support roles |