AP psych: The Neuron
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Created by:
jellybellybean94 on November 6, 2011
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25 terms
Terms | Definitions |
|---|---|
 axon terminals | transmit signals from cell to cell. announce the message... |
| soma | cell body, controls functioning of whole cell |
| dendrites | recieve signals from other nerve cells. carry messages to the body, which may relay the messages to the axon. detect the message... |
| axon | carries signals from cell body to other nerve cells. |
| cell body | cell's life support center |
| neural impulse | electrical signal traveling down the axon |
| myelin sheath | covers axon of some neurons and helps speed neural impulses |
| synapse | space between each neuron |
| sensory neuron | carry messages from the body's tissues and organs inward to the brain |
| motor neurons | brain and spinal cord send info to the bodies tissues through... |
| interneurons | where info is processed |
| action potential | brief electrical charge that travels down its axon |
| axon membrane | sodium ions go through it and depolarize that section, causing the next channel to open like dominos falling |
| excitatory | signals that push a neuron's acccelerator because the neuron is slightly depolarized. |
| inhibitory | signals that slow down a neuron because the neuron is slightly hyperpolarized |
| action potention, neurotransmitters, synaptic, opened, electrically | ___ ____ reaches end of axon, triggers a release of chemical messengers (_______), and they cross the _____ gap, then bind to receptor sites on the recieving neuron. the channel is ______, and _____ charged atoms flow in. |
| reuptake | sending neuron reabsorbs excess neurotransmitters |
| agonist | enhances normal effect of the neurotransmitter. |
| antagonists | block action of a neurotransmitter. |
| stimulant | caffeine is a... |
| depressant | morphine is a... |
| hallucinogen | lsd is a .... |
| depressant | drugs that calm neural activity and slow body functions |
| stimulants | drugs that excite neural activity and arouse body functions |
| hallucinogens | drugs that evoke sensory images |
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