The Speed at Which Nerve Impulses Travel Down an Axon

question 33

Multiple Choice

The speed at which nerve impulses travel down an axon are greatly increased by:

• A)myelin.
• B)refractory periods.
• C)the length of the axon.
• D)calcium channels.

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Definitions:

Randomly Assigned

A method used in experiments where participants are allocated to different groups or conditions in a way that is determined by chance.

Control

The capacity to shape or guide the actions of individuals or the progression of situations.

Operational Definition

A clear, precise description of a variable in terms of the processes or operations used to measure or manipulate it.

Variables of Interest

Elements or conditions that researchers aim to explore or measure within a study to determine their effects on the outcomes.