How does Novocain block pain when a dentist is drilling your tooth?
A) Novocain causes action potentials to travel away from the brain instead of toward it.
B) Novocain prevents sodium from crossing the membrane.
C) Novocain inhibits many synapses in the brain.
D) Novocain blocks blood flow to certain brain areas.
Correct Answer:
Verified
Q26: Why would you feel a pinch on
Q27: If your finger touches something,how soon do
Q28: How do anesthetic drugs such as Novocain
Q29: An action potential takes place by means
Q30: The study of action potentials helps explain
Q32: What happens at a synapse?
A)Something very synful
B)Synthesis
Q33: When your toes touch something,you feel the
Q34: What does synaptic transmission require (in the
Q35: What is a neurotransmitter?
A)A pattern of brain
Q36: When an axon membrane reaches its threshold
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