6. A drug that inhibits acetylcholinesterase A. would inhibit the release of ACh

Question

6. A drug that inhibits acetylcholinesterase A. would inhibit the release of ACh from presynaptic axon terminals. B. would inhibit the attachment of ACh to its receptor on the postsynaptic cell C. would increase the ability of ACh to stimulate the postsynaptic cell D. All of the above E. None of the above 7. The smaller the receptive fields in a region A. the lower the density of receptors in the region. B. the lower the acuity in the region. C. the higher the likelihood of feeling two separate stimuli occurring close together on the skin. D. A and B E. A, B, and C

Explanation / Answer

6. Acetylcholinesterase inhibitors act by inhibiting the acetylcholinesterase enzyme abd thus preventing breakdown of ACh. So none of the statement is true and answer is (E)

7. The smaller the receptive field more the number of sensory stimuli as seen in fingers.

Also small receptive field have better acuity.

Small receptive field are used for 2 point discrimination

So the answer is (C)

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