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10 Cards in this Set
- Front
- Back
What is the substance that breaks down the acetylcholine?
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choloinesterase
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True or False
Summation is the sum effect of all ions acting on a neuron. |
false.
Summation is the sum effect of all neurotransmitters acting on a neuron. |
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Resting state usually has a net charge of what?
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70 mv
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The Reflex arc contains 5 main components. What are they?
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1.receptor 2.sensory neuron
3.interneuron in spinal cord 4.motor neuron 5.the effector (muscle or gland) |
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The axon plays what important role?
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carries impulse to other neurons or to effectors; always travels away from cell body.
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In the neural circuits, all pathways must include what?
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reception
transmission processing |
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dopamine does what for you
a) a chemical that makes postsynaptic membranes more permiable to Na+. b)an enzyme that breaks down acetylcholine. c)a neurotransmitter, found in the brain that regulates movement, balance, and walking. |
c)
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Why is it important to have a fair amount of serotonin in your body?
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It helps maintain a good mood when released.
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Depolarization is when the neuron is stimuloated enough to cause _____ ions gates to open. This causes a rush of _____ ions.
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sodium, sodium
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What is acetylcholine?
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acetylcholine is a transmitter chemical released from vesicles in the end plates of neurons. acetylcholine makes the postsynaptic membranes more permiable to sodium ions.
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