| A | B |
|---|
| Regulation | the control and the coordination of all life activity |
| Receptors | Specialized structures that are sensitive to changes in the external and internal environment |
| Impulses | Electrochemical message |
| Effector | Muscles or glands in which neurons are attached to |
| Stimulus | is a change in the external or internal environment which initiates a impluse |
| Neuron | is the basic unit if structure and function in the nervous system |
| Cyton | Known as the cell body contains the nucleus of the neuron |
| Dendrites | Fibers that detect stimuli and generate impulse toward the cyton |
| Axon | A fiber that transmits teh impulse away from the cyton and towards the terminal branches |
| Synapse | The gap between the terminal brancher of 1 neuron and the dendrites of another neuron |
| Sensory Neurons | Carry impulses from the receptors toward teh spinal cord and brain |
| Motor Neurons | Carry impulses from the brain or spinal cord the effectors |
| Interneurons | A neuron that relays impulses from neuron to another |
| Nerves | a bundle of axons joined together by conective tissue |
