Use the word bank below and wri Not all of the choices will be used) 1.Ais a ner

Question

Use the word bank below and wri Not all of the choices will be used) 1.Ais a nerve cell, the basic building block of the nervous system. 2. The cell body is also called theIt te the correct letter in the spaces provided. It houses the cell nucleus and carries out the metabolic work of the cell. 3. TheA is a long cable-ike structure that conducts outgoing messages to other neurons. are tree-like structures that project from the soma. They have receptor sites that enable them to receive messages from neighboring neurons. 5. are swellings at the tips of axons from which neurotransmitters are released. 6. When a neural impulse reaches the terminal buttons, it triggers the release ofthe chemical messengers that carry the message across the (tiny fluid-filled gap between neurons) to neighboring neurons 7. Neurotransmitters have either excitatory or effects on neurons at which they 8. Word Choice dock. block activity of certain neurotransmitters, whereas ncrease activity or availability of certain neurotransmitters. C agonists D. dendrites E. reuptake F terminal buttons euron H. myelin sheath I. neurotransmitters J. inhibitory K. antagonists L. synapse M. dopamine

Explanation / Answer

6. When the neural impulse reaches the terminal button, it triggers the release of neurotransmitters (I) that carry the message across the synapse (L).
7. Neurotransmitters have either excitatory or inhibitory (J) effects.
8. Antagonists (K) block the activity whereas agonists (C) increase the activity.

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