2023-11-15T04:34:52+03:00[Europe/Moscow] en true <p>In the axon terminal of the pre-synaptic neuron, what channels open in response to the action potential?&nbsp;</p><p></p><p></p>, <p> What is released from the axon terminal? </p>, <p>What area does this substance cross through? </p>, <p>What does this substance bind to? </p>, <p>What happens as a result of this binding?</p>, <p>What enters the second neuron?&nbsp; </p>, <p>What happens to the membrane potential of the second neuron? </p>, <p>Name the region of the axon where the action potential begins.</p>, <p>When the membrane potential increases from -70 to -55 mV, the neuron has reached</p>, <p>What kind of channels open at -55 mV?</p>, <p>When the channels in question j open, which ions move and where do they go?</p><p></p><p></p><p></p><p>---</p><p><em>question J: What kind of channels open at -55 mV?</em></p>, <p>What kind of channels open at +30 mV?</p>, <p>When the channels in question (l) open, which ions move and where do they go? </p><p></p><p><em><u>question I : </u>What kind of channels open at +30 mV?</em></p>, <p>What kind of channels close at +30 mV?</p>, <p>Which channels are always open?</p>, <p>What active transport protein functions in the resting state? </p> flashcards
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  • In the axon terminal of the pre-synaptic neuron, what channels open in response to the action potential? 

    voltage gated calcium channel

  • What is released from the axon terminal?

    neurotransmitters by exocytosis 

  • What area does this substance cross through?

    synaptic cleft

  • What does this substance bind to?

    specific receptors on the postsynaptic membrane

  • What happens as a result of this binding?

    opens ion channels resulting in graded potentials

  • What enters the second neuron? 

    sodium 

  • What happens to the membrane potential of the second neuron?

    depolarizes as it becomes less negative

  • Name the region of the axon where the action potential begins.

    axon hillock 

  • When the membrane potential increases from -70 to -55 mV, the neuron has reached

    threshold.

  • What kind of channels open at -55 mV?

    all of the sodium channels

  • When the channels in question j open, which ions move and where do they go?

    ---

    question J: What kind of channels open at -55 mV?

    sodium ions enter the cell following its electrochemical gradient 

  • What kind of channels open at +30 mV?

    voltage-gated potassium channels

  • When the channels in question (l) open, which ions move and where do they go?

    question I : What kind of channels open at +30 mV?

    potassium follows its electrochemical gradient outside of the cell

  • What kind of channels close at +30 mV?

    sodium channels 

  • Which channels are always open?

    2 potassium leakage channels and 1 sodium leakage channel

  • What active transport protein functions in the resting state?

    sodium potassium pump transports sodium out and potassium in