__________ drugs for epilepsy affect the flow of sodium ions in and out of the cells. Barbiturate Benzodiazepine Hydantoin Succinimide
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Phenytoin (sodium channel blocker) and ethosuximide (calcium channel blocker) are anti-seizure drugs that stop seizures from happening. These drugs work by inhibiting electrical impulses (action potentials) from occurring.1. Explain the importance of sodium and calcium channels on a neuron2. Explain the reasons why action potentials do not occur when these channels are inhibited.3. Explain include the phases of an action potential,4. Explain the channels involved, 5. Explain the importance of an action potential and synaptic transmission6. Why would these drugs help treat seizures? Be detailed in your explanation and support your answer with facts. BE DETAILED
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A 25-year-old man experiences sudden onset of loss of consciousness and uncontrollable movement of all four extremities while at home. When paramedics arrive 10 minutes later, he has regained control of his body but appears drowsy and confused. On the way to the hospital, he begins displaying alternating stiffening and jerking of the limbs and irregular breathing. Paramedics administer a drug to rapidly control the patient's symptoms. Which of the following is the mechanism of action of the drug most likely administered? • A. Blocks Nat channels • B. Blocks T-type Ca?+ channels • C. Blocks high-voltage activated Ca?+ channels • D. Increases duration of CI-channel opening • E. Increases frequency of Cl channel opening
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