Which Is TRUE About the Initial Segment of an Axon

question 87

Multiple Choice

Which is TRUE about the initial segment of an axon?

• A) Its membrane potential at threshold is more positive than that of the cell body and dendrites.
• B) Its membrane potential at threshold is more negative than that of the cell body and dendrites.
• C) Synapses far from the initial segment are more effective in influencing whether an action potential will be generated in the axon than are synapses close to the initial segment.
• D) It is the region where neurotransmitter vesicles are docked and ready to be released by exocytosis.
• E) It can only conduct graded potentials because it lacks voltage-gated Na⁺ channels.

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Definitions:

Investment in Equipment

The total capital expenditure on physical assets like machinery and equipment intended for the production of goods or services.

Payback Method

A basic investment appraisal technique that calculates the time required to recoup the cost of an investment.

Time Value of Money

The concept that money available now is worth more than the same amount in the future due to its potential earning capacity.

Capital Budgeting

The process of planning significant investments in projects that have long-term implications such as the purchase of new equipment or the introduction of a new product.