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What is the effect of increasing the foltage and how does this change correlate to changes in the nerve?
Increasing the voltage in a nerve can lead to an increased rate of nerve firing, resulting in more frequent action potentials. This can affect the overall excitability and sensitivity of the nerve. As voltage increases, the threshold for eliciting an action potential decreases, making the nerve more likely to fire in response to stimuli.
What effect did an ether have on action potential?
Ether can enhance the excitability of nerve cell membranes, leading to a decrease in the threshold for action potential generation. This can result in an increase in the frequency and amplitude of action potentials.
What was the effect of ether on elicciting an action potential?
Ether causes potassium ion pores to open, allowing potassium ions to leave the neuron, hyper-polarizing the neuron so it is unable to fire an action potential.
What effect does hypocalcemia have on the cardiac action potential?
Hypocalcemia can lead to a prolongation of the cardiac action potential due to reduced calcium influx. This can result in an increased risk of arrhythmias, as well as potential impairment of cardiac muscle contractility.
Are neurotransmitters that depress the resting potential called excitatory?
No, neurotransmitters that depress the resting potential are called inhibitory neurotransmitters. Excitatory neurotransmitters have the opposite effect, causing depolarization and increasing the likelihood of an action potential.
What was the effect of curare on eliciting an action potential?
It creates an action potential
How does the effect of lidocaine differ from the effect of TTX?
They both decrease action potential duration, but TTX is the only one that decreases the maximum rate of depolarization.
Does lidocaine patches have a similar effect to Fentanyl patches?
Lidocaine patches and fentanyl patches serve different purposes and have distinct mechanisms of action. Lidocaine patches are primarily used for localized pain relief by providing a numbing effect, while fentanyl patches are opioid analgesics used for managing severe pain and have systemic effects. Fentanyl patches are more potent and can lead to significant side effects and potential for addiction, whereas lidocaine patches are generally considered safer with less systemic impact. Thus, their effects and uses are not directly comparable.
What is the effect of increasing the foltage and how does this change correlate to changes in the nerve?
Increasing the voltage in a nerve can lead to an increased rate of nerve firing, resulting in more frequent action potentials. This can affect the overall excitability and sensitivity of the nerve. As voltage increases, the threshold for eliciting an action potential decreases, making the nerve more likely to fire in response to stimuli.
Does lidocaine contain cocaine?
No, they are two different substances. Lidocaine was given the -caine ending only due to the anesthetic effect it shares with cocaine. However, sometimes cocaine is adulterated with lidocaine to increase the perceived potency of the product (due to lidocaine's numbing effects).
What is the relationship between the action potential and the synapse?
A synapse and an action potential have a flip-flopping cause and effect relationship, in that an action potential in a presynaptic neuron initiates a release of neurotransmitters across a synapse, which can then subsequently potentially trigger an action potential in the axon of the postsynaptic neuron, which would then cause release of neurotransmitters across a following synapse.
What effect did an ether have on action potential?
Ether can enhance the excitability of nerve cell membranes, leading to a decrease in the threshold for action potential generation. This can result in an increase in the frequency and amplitude of action potentials.
Is Lidocaine the same as Fen Fen?
Not even close--in fact, one usage of Lidocaine is to combat heart arrhythmia, which is a potential side-effect of Phen-Fen (Phentermine-Fenfluramine). Lidocaine is primarily an anesthetic, used in sunburn treatments. The use as an anti-arrhythmia treatment is much less common. Phen-Fen is (a pair of drugs used in concert as) an appetite suppressant. It was found to potentially cause damage to heart valves, however, and its use was discontinued in the U.S. in 1995.
What was the effect of ether on elicciting an action potential?
Ether causes potassium ion pores to open, allowing potassium ions to leave the neuron, hyper-polarizing the neuron so it is unable to fire an action potential.
What effect does hypocalcemia have on the cardiac action potential?
Hypocalcemia can lead to a prolongation of the cardiac action potential due to reduced calcium influx. This can result in an increased risk of arrhythmias, as well as potential impairment of cardiac muscle contractility.
What effect does adrenaline have on gut smooth muscle?
It makes the muscle totally relax as it blocks the action potential in the nerves.
Why does tetrodotoxin effect your muscles?
It blocks the sodium channels that are required to create action potential in the muscles to make them contract.
