| A | B |
|---|
| regulation | control and coordination of all life activities |
| receptors | specialized structures that are sensitive to changes on the external and internal environment |
| Neurons | nerve cell, is the basic unit of structure and function in the nervous system |
| effectors | muscles or glands in which neurons are attached to |
| nerve control | neurons are used for the transmission of impulses from one part of the body to another |
| impulse | electochemical message |
| stimulus | is a change in the external or internal environment, which initiates an impulse |
| dendrite | fibers that detect stimuli and generate and impulse towards the cyton |
| cyton | known as the cell body, contains the nucleus of the neuron |
| axon | a fiber that transmits the impulse away from the cyton and towards the terminal branches |
| terminal branches | the ends of axons that secrete neurotransmitter |
| synapse | the gap between the terminal branches of one neuron and the dentrites if another neuron |
| sensory neurons | carry impulses from the receptors toward the spinal cord and towards the brain |
| interneuron | relay impulses from one neuron to another |
| motor neuron | carry impulses from the brain and the spinal cords towards the effectors |
