This question can have multiple correct answers: Certain drugs can be used to al

Question

This question can have multiple correct answers:

Certain drugs can be used to allow movement of ions into or out of the nerve cell based on the desired response. If a drug was used to try and inhibit a post-synaptic nerve cell from having an action potential, the drug: Would need to be injected into the circulation rather than serve as a local nerve inhibitor Could cause more chloride (CI-) ions to move inside the post-synaptic nerve cell membrane Could cause more potassium ions to move out of the post-synaptic nerve cell membrane Could bind to and serve as an antagonist of ligand-gated sodium channels on the post-synaptic nerve cell membrane

Explanation / Answer

Answer

The following are Correct

B. Drug could cause more chloride ions to move inside the post synaptic nerve cell membrane.

The movement of chloride ions inside nerve causes hyperpolarization that can prevent development of action potential.

C.could cause more potassium ions move outside of post synaptic nerve cell membrane .

The movement of potassium ions outside cell also leads do development hyperpolarization.

D. Could binds to and serve as an antagonist of ligand gated sodium channels on the post synaptic nerve cell membrane.

Here the opening of ligand gated sodium channels are important for initiation and propagation of action potential. Blockage of this prevent development of action potential.

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