When You Compare the Current Across a Muscle Cell Membrane

question 60

Essay

When you compare the current across a muscle cell membrane before and after applying acetylcholine, you notice that acetylcholine causes to a large inward current and that there is also an increase in the baseline fluctuations (or "noise") in the recorded current. What causes this "noise"?

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Definitions:

Constant Mesh

Gears positioned to remain in permanent mesh, not engaged and disengaged by shifting action.

Sliding Clutch

Actuated by a shift yoke, used to engage a gear on a shaft. Also known as a dog clutch.

NPV

Net Present Value; a method used in capital budgeting to assess the profitability of a project or investment by calculating the difference between the present value of cash inflows and outflows.

CCA Rate

Stands for Capital Cost Allowance rate, which is a tax deduction in Canada that represents a business's investment in certain assets depreciating over time.