| A | B |
| Regulation | Control and coordination of all life activities. |
| Receptors | Specialized structures that that are sensitive to changes in the external and internal environment.(5 Senses) |
| Impulses | Electrochemical message |
| Effector | Muscles or glands in which neurons are attached to. |
| Stimulus | change in the external environment, which initiates an impulse. |
| Neuron | Nerve cells/The basic unit of structure and function in the nervous system |
| Cell Body(Cyton) | Contains the nucleus of the neuron |
| Denrites | Fibers that detect stimuli and generate an impulse toward the cyton. |
| Axon | Fiber that transmits the impulse away from the cyton and towards the terminal branches. |
| Synapse | The gap between the terminal branches of 1 neuron and the dendrites of another neuron |
| Sensory Neurons | Carries impulses from the receptors towards the spinal cord and brain. |
| Motor Neurons | Carry impulses from brain and spinal cord toward the effectors |
| Interneurons | Relay impulses from one neuron to another |
| Nerves | Basic unit of structure and function in the nervous system. |
| Sensory Nerve | Carry impulses from receptors toward the spinal cord and brain. |
| Motor Nerve | Carry from brain and spinal cord toward the effectors. |
| Neurotransmitter | Chemicals secreted by the terminal branches that aid in the transmission of an impulse across the synapse |