| A | B |
|---|
| Nervous System | The body's command system; communicates information throughout the body and controls the body's response to stimuli |
| Stimulus | Any change or signal in the internal or external environment that can make an organism react. |
| Neuron | Cells that carry information through your nervous system. |
| Receptor | Location where a stimulus is picked up. |
| Sensory Neuron | Type of neuron that picks up stimuli from the internal or external environment through sensory organs. |
| Interneuron | Type of neuron that interprets a nerve impulse and creates a response for it. (brain & spinal cord) |
| Motor Neuron | Type of neuron that sends out impulses to the muscles resulting in a response to a stimuli. |
| Nerve Impulse | Message that a neuron carries. |
| Synapse | Space that separates the axon terminal of one neuron and the dendrite of the neighboring neuron. |
| Spinal Cord | Part of the nervous system that connects the brain with the rest of the nervous system |
| Reflex | Automatic response that occurs very rapidly and without conscious control. |
| Central Nervous System | The largest part of the nervous system, consists of the brain and spinal cord |
| Peripheral Nervous System | Connects the brain and spinal cord with the rest of the body |
| Neurotransmitter | Chemical signals that jump over the synapse between neurons. |
| Nerve | Bundle of nerve fibers. |
| Somatic Nervous System | Division of the nervous system that controls voluntary actions (jogging) |
| Autonomic Nervous System | Division of the nervous system that controls involuntary actions (breathing & digestion) |
| Cerebrum | The largest part of the brain that controls thinking, communicating and learning. |
| Cerebellum | Controls balance and coordination, "little brain". |
| Brain Stem | Part of the brain that controls involuntary actions; breathing, digestion, and blood pressure |
| Paralysis | Loss of movement or feeling due to damage of the spinal cord. |
