B. THE NEURON 1. The following roots and suffixes are used to name the various structures of the neuron. Match each root or suffix with its meaning: Dendrite → • Body Axon → • peel (covering) Soma → • axis (line) Lemma → • branch (like that of a tree) 2. Structure of a multipolar neuron. Label the following figure with the terms in the box below. Soma Nucleus axon hillock (trigger zone) Dendrites Axon (or nerve fiber) Schwann cell myelin sheath Internodes Node of Ranvier Synaptic knob Neurilemma Axoplasm 3. Functional classes of neurons. Label the following figure on the right with the terms in the box below Interneuron (association) neuron Motor (efferent) neuron Sensory (afferent) neuron Peripheral Nervous System Central Nervous System
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