Mr. Doyal has been diagnosed with Parkinson's disease (which is the result of damaged dopamine signaling). Instead of giving him dopamine, his doctors have given him a derivative of dopamine called L-DOPA to take. Given what you know about substances entering the nervous system, why do you think Mr. Doyal was given L-DOPA instead of dopamine?

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The Answer of  Mr. Doyal has been diagnosed with Parkinson's disease (which is the result of damaged dopamine signaling). Instead of giving him dopamine, his doctors have given him a derivative of dopamine called L-DOPA to take. Given what you know about substances entering the nervous system, why do you think Mr. Doyal was given L-DOPA instead of dopamine?

Mr Doyal Has Been Diagnosed with Parkinson's Disease (Which Is