Types of Neurons Based on morphological characteristics, the neurons have been classified into the following groups: multipolar, bipolar, pseudo-unipolar, and unipolar. Multipolar Neurons Multipolar neurons are most common in the brain and spinal cord. They possess three or more dendrites and one long axon issuing from the cell body (Fig. 5-3A). A large motor neuron […]
Composition of Peripheral Nerves Each peripheral nerve consists of the following components: 1. Epineurium, which consists of a dense connective tissue layer enclosing several bundles of nerve fibers (Fig. 5-8); 2. Perineurium, which is a sheath of connective tissue enclosing each bundle of nerve fibers (Fig. 5-8); and 3. Endoneurium, which consists of a loose, […]