How do anesthetic drugs such as Novocain block the sensation of pain?
A) They prevent sodium from crossing the axon membrane.
B) They decrease overall brain activity.
C) They produce a negative charge that competes with positive charges.
D) They form a shield around pain receptors that prevents them from responding.
Correct Answer:
Verified
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Q24: The fact that the nervous system conveys
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Q29: An action potential takes place by means
Q30: The study of action potentials helps explain
Q31: How does Novocain block pain when a
Q32: What happens at a synapse?
A)Something very synful
B)Synthesis
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