Neuron Cell Body Location o Most are found in the central nervous system o Gray matter- cell bodies and unmylenated fibers o Nuclei- clusters of cell bodies within the white matter of the central nervous system o Ganglia collections of cell bodies outside the central nervous system
Neuron Cell Body Location • Most are found in the central nervous system •Gray matter – cell bodies and unmylenated fibers •Nuclei – clusters of cell bodies within the white matter of the central nervous system • Ganglia – collections of cell bodies outside the central nervous system
Functional classification of Neurons o Sensory(afferent) neurons Carry impulses from the sensory receptors o Cutaneous sense organs e Proprioceptors -detect stretch or tension o Motor(efferent) neurons Carry impulses from the central nervous system
Functional Classification of Neurons • Sensory (afferent) neurons •Carry impulses from the sensory receptors •Cutaneous sense organs •Proprioceptors – detect stretch or tension • Motor (efferent) neurons •Carry impulses from the central nervous system
Functional classification of Neurons o Interneurons(association neurons) o Found in neural pathways in the central nervous system e Connect sensory and motor neurons
Functional Classification of Neurons • Interneurons (association neurons) •Found in neural pathways in the central nervous system •Connect sensory and motor neurons