6 Cells of the Nervous system

6 Cells of the Nervous system - Types of Neurons Functional...

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Cells of the Nervous System-1 Types of Neurons Functional classification Sensory or afferent : action potentials toward CNS Motor or efferent : action potentials away from CNS Interneurons or association neurons : within CNS from one neuron to another
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Cells of the Nervous System-2 Types of Neurons Structural Classification: Multipolar – many dendrites, single axon – most neurons in the CNS. Bipolar – 1 dendrite, 1 axon – sensory organs – i.e. eye Unipolar – single process extending from cell body – divides into 2 branches – part extending to periphery has dendrite like sensory receptors.
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Cells of the Nervous System-3 Supporting Cells of the Central Nervous System Neuroglia numerous – account for 50% of the weight of the brain 4 types of neuroglial cells – unique structure and function Astrocyte Microglial cell Ependymal cells Node of Ranvier Myelin sheath Axon Oligodendrocyte
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Cells of the Nervous System-4 Supporting Cells of the Central
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6 Cells of the Nervous system - Types of Neurons Functional...

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