What Action Is Most Responsible for the Resting Membrane Potential

question 136

Multiple Choice

What action is most responsible for the resting membrane potential in cardiac muscle cells?

• A) Movement of K⁺ through voltage-gated K⁺ channels
• B) Movement of Na⁺ through open Na⁺ channels
• C) Movement of Ca²⁺ through voltage-gated Ca²⁺ channels.
• D) Closing of Na⁺ and K⁺ voltage-gated channels

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Definitions:

Bond Amortization Schedule

A table showing the periodic payments of an amortizing bond, including the allocation of each payment into interest and principal components over the life of the bond.

Interest Paid

The amount of interest expense that has been paid by the company during a specific period for borrowed funds.

Capital Lease

A lease agreement in which the lessee essentially acquires all the risks and rewards of ownership, akin to a financial purchase.

Operating Lease

A leasing agreement for the use of an asset, where the lessee does not assume the risk of ownership.