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12 Cards in this Set
- Front
- Back
- 3rd side (hint)
Central Nervous System |
Network of nerves that inclides the brain and spinal cord; integrates and precesses information sent by nerves. |
Brain |
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Peripheral Nervous System |
Network of nerves that carry sensory messages to the central nervous system (CNS) and send information from the CNS to the muscles and glands; consists of the autonomic and somatic system. |
CNS |
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Sensory Neuron |
Carry information into the CNS |
What do they carry? |
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Motor Neuron |
Carry information to the effectors. |
What do they carry? |
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Interneurons or Association Neurons |
Make connections in the CNS; only found in the CNS; are very short. |
CNS |
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Neurons |
The functional unit of the nervous system. |
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Neuroglial Cells |
These cells are arranged into the nerve tissue and nerves throughout the body interconnect all parts of the body. |
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Cell Body |
The part of the neuron that contains the cells organelles. Most cellular funtions occur here. |
Part of the neuron |
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Dendrites |
Gather information and send a nerve impulse towards the cell body. |
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Axon |
Send a nerve impulse away from the cell body towards other neurons or effectors. |
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Myelin Sheath |
Protects and insulates the axon. |
Plastic coating on electric wire. |
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Node of Ranvier |
Gap in the myelin sheath insulating the axon of a myrlinated nerve cell; the membrane of the axon is exposed and action potentials occur only at these nodes; nerve inpulses jump from one node of Ranvier to the next. |
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