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Nervous System EL
Express Lesson Nervous System
| Question | Answer |
|---|---|
| Neurons | specialized cells that receive and send the signals |
| Nerves | are bundles of tissue that carry signals from one place to another |
| Spinal cord | is the column of nerve tissue that runs through the back-bone |
| Central nervous system | brain and spinal cord |
| Peripheral nervous system | The nerves that connect the brain and spinal cord to other parts of the body |
| Synapse | is a point between a neuron that is sending a signal and the neuron or other cell that is receiving the signal |
| Neurotrasmitters | chemicals which move across the synaptic cleft and bind to receptors on the surface of the next cell |
| Sensory nerves | are nerves that carry the signals from the sense organs toward the CNS,where they are proessed or relayed |
| Motor nerves | are nerves that carry signals from the brain or the spinal cord to the muscles and glands |
| Brain | is the main control center for the body |
| Cerebrum | is the largest most complex part of the brain |
| Cerebellum | is the part of the brain that controls balance and posture |
| Brain stem | is the part of the brain that guides signals coming from the spinal cord to other parts of the brain |
| Spinal cord | nerves that branch from the spinal cord and that go to the brain and to the tissues of the body |
| Reflex | is an involuntary response that enables the body to react immediately to a stimulus,such as a possible injury |
Created by:
yolanda n amanda
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