Figure 43.1 -How Do Myelin Sheaths Increase the Speed with Which Action

question 13

Multiple Choice

Figure 43.1
-How do myelin sheaths increase the speed with which action potentials are propagated along an axon?

• A) They increase the permeability of Na⁺ ions in the plasma membrane.
• B) They cause action potentials to "jump" down the axon rather than travel in a continuous path along every site on the axon.
• C) They amplify the action potential by increasing sodium influx along the entire distance of the neuron.
• D) All of the above answers apply.

Explain the effects of interest rates on the economy, including the role of usury laws.

Understand the relationship between supply, demand, and pricing in various markets, including real estate and loanable funds.

Familiarize with the concept of economic profits versus accounting profits.

Assess the impact of usury laws on the availability and cost of loanable funds.

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