Why does it take you longer to feel a pinch on your ankle than a pinch on your shoulder?
A) The touch receptors on the ankle are smaller than those on the shoulder.
B) Neurons in the shoulder have more dendrites than those in the ankle.
C) Action potentials from the ankle must travel farther to reach the brain.
D) The ratio of neurons to glia is greater in the shoulder than in the ankle.
Correct Answer:
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Q21: In a typical neuron, during the resting
Q22: Action potentials follow the all-or-none law, which
Q23: The strength of an action potential
A) decreases
Q24: During the chemical process called an action
Q25: The study of axons and action potentials
Q27: In order for an axon to transmit
Q28: The advantage of an action potential over
Q29: Anesthetic drugs such as Novocain block the
Q30: The all-or-none law applies to
A) nervous system
Q31: Action potentials
A) occur when potassium ions enter
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