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Definition
| cell's life-support center --> contains nucleus |
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Term
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Definition
| neural impulse that travels down the axon |
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Term
| Function of Acetylcholine (ACh) |
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Definition
Enables muscle action, learning, and
memory |
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Term
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Definition
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Definition
| level of stimulation required to trigger a neural impulse |
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Term
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Definition
| seizures, tremors, and insomnia |
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Term
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Definition
| junction between the axon tip of the sending neuron and the dendrite or cell body of the recieving neuron. tiny gap at this junctino is called the synaptic gap or cleft. |
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Term
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Definition
| chemical messengers that traverse the synaptic gaps between neurons. When released, they travel across teh synapse and bind to receptor sites on the receiving neuron. |
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Definition
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Definition
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Definition
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Definition
| natural opiate --> linked to pain control and pleasure. Morphine within |
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Term
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Definition
| Affects mood, hunger, sleep, and arousal |
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Term
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Definition
| Inhibits a neurotransmitters' release. |
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Term
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Definition
| body's speedy electrochemical communication system |
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Term
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Definition
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Term
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Definition
| fatty layer around some axons -> speeds up transmission time |
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Term
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Definition
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Term
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Definition
| positive-outside/negative-inside |
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Term
| Sympathetic Nervous System |
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Definition
| arousing; dilates pupils, speeds up heartbeat, inhibits digestion |
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Term
| parasympathetic nervous system |
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Definition
| calming; contract pupils, slows heartbeat, stimulates digestion |
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Term
| Neurotransmitters (Name 6) |
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Definition
| Acetylcholine (ACh), Dopamine, Serotonin, Norepinephrine, GABA (gamma-aminobutyric acid), Glutamate. |
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Term
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Definition
| Influences movement, learning, attention and emotion. |
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Term
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Definition
| interconnected neural cells. experience strengthens or weakens connections |
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Term
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Definition
| Helps control alertness and arousal |
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Term
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Definition
| Depression (Take Prozac to raise level) |
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Term
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Definition
| Inhibitory neurotransmitter |
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Term
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Definition
| passes message to other neurons, muscles, or glands. Surface is selectively penatrable. |
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Term
| Too little Norepinephrine |
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Definition
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Term
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Definition
| Excitatory neurotransmitter; involved in memory |
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Term
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Definition
| migraines or seizures (avoid MSG) |
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Term
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Definition
| carry outgoing info from CNS to effector cells (muscles, glands) |
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Term
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Definition
| Part of PNS - controls movements of skeletal muscles |
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Term
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Definition
| excites, similar enough to neurotransmitter to mimic its effects OR blocks its reuptake |
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Term
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Definition
| send info from tissues and sensory organs to brain and spinal cord |
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Term
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Definition
| Controled by CNS, is an automatic responses to stimuli. 1 sensory and 1 motor neuron communicating through 1 interneuron in the spine. Also deals with pain. |
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Term
| Peripheral Nervous System |
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Definition
| sensory and motor neurons that connect CNS to body |
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Term
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Definition
| controls glands and muscles of internal organs |
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