| A | B |
|---|
| Receptors | Specialized structures that are sensative to changes in the environment |
| Neurons | nerve cells |
| Effectors | muscles or glands in which neurons are attached |
| Neurotransmitter | chemicals secreted by by terminal branches that aid in the transmission of an impulse across a synapse |
| Regulation | control and coordination of all life activities |
| Sensory neurons | carries impulses from a receptor toward the spinal cord |
| Cyton | cell body; contains nucleus |
| Dendrites | fibers that detect stimuli and generate impulses |
| Axon | finer that transmits the impulse away from the cyton and towards theterminal branches |
| Nerves | a bundle of axons that are bound together by tissue |
| Impulses | a region of electrical and chemical change that passe along the nerve cell membranea |
| Stimulus | factor that causes an impulse to trigger |
| Synapse | gap between terminal branches of one neuron and another |
| Motor Neurons | neuron that carriesimpulses from the spial cord and brain toward effector |
| Interneurons | neuron that relays impulses from one neuron to another |
| Motor Nerve | nerve containing axons of motor neurons only |
| Sensory Nerve | nerve containing the axons of a sensory neuron only |
