Unit 2 Word Scramble
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| Question | Answer |
| Central Nervous System (CNS) | Receives / Processes incoming sensory informationMade up of –brain & spinal cord |
| Spinal Reflexes | automatic behaviors produced from spinal cord |
| Peripheral Nervous System | Controls input / output of CNS |
| Somatic | nerves that help us sense the world around us |
| Automatic system | blood press., sweat, heart rate… |
| Sympathetic | accelerates body fx’s—mobilizes body for action (fight or flight) |
| Parasympathetic | returns body to normal status. |
| Neuron | Nerve Cell |
| Cell body | keeps the neuron alive, decide whether or not it will fire. |
| Dendrites | deliver messages to cell body from other neurons |
| Axon | Transmits messages away from cell body to other neurons |
| Axon Terminals | branches at the end of an axon |
| Myelin Sheath | fatty covering of cells |
| Glial Cells | provide nutrients for nerve cells |
| Synapse | space b/t neurons |
| Neurotransmitter | chemical substance that binds with dendrites to EXCITE or INHIBIT firing. |
| Serotonin | affects sleep, appetite, sensory perception, pain suppression, mood |
| Dopamine | affects voluntary movement, learning, memory, & emotion. |
| Acetylcholine | affects muscle action, cognition, memory, emotion |
| Norepinephrine | affects heart-rate (stress), learning, memory, emotion |
| GABA | major inhibitor in the brain |
| Endorphins | alter effects of neurotransmitters |
Created by:
atercs
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