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Unformatted text preview: changes in environment (stimuli) b) interneurons = connector neurons c) efferent = motor neuron (response) Neuron Cell Body with nucleus = Perikaryon Cell Body - cytoplasm has prominent numbers of basophilic granules (ribosomes and ER) = Nissl's Bodies Usually two kinds of fibrous processes - dendrite and axon. Dendrite a) non-myelinated, b) brings impulse to NCB, c) contains microtubules. Axon a) myelinated, b) takes impulse from NCB, c) contains microfilaments. Neuron Morphology Several levels of neuron organization: a) apolar - modified neurons with no fibrous process, unique to Pineal gland and Adrenal medulla. b) unipolar (pseudounipolar) - one axon, no dendrite, PNS afferent. c) bipolar - one axon and one dendrite; special neuron types; retina of eye; olfactory neuron. d) multipolar; one axon and many dendrites; CNS efferent and afferent; PNS Efferents. • ....
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- Spring '09
- Crawford
- Neural tube, Nerve Cell Origins, mantle neuron cell
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