After a Neuron Has Sent a Nerve Impulse, It Has

question 343

Multiple Choice

After a neuron has sent a nerve impulse, it has to rest for a few milliseconds. This has important implications for neuronal firing because it places an upper limit on firing rate. This is referred to as _____

• A)an action potential.
• B)an absolute refractory period.
• C)a recalibration interval.
• D)an anion.
• E)reaction range.

Understand the concept of physical and chemical changes.

Convert measurements between different units.

Determine the significant figures in a measurement.

Compare the densities of two materials to determine which is more dense.

---

Definitions:

Ordinal Data

Data that can be categorized and ranked; however, the intervals between the categories are not necessarily equal.

Nominal Variable

A categorical variable for which different values represent different categories without any intrinsic ranking order.

Interval Data

A type of numerical data involving measurements where both the order and the exact differences between the measurements matter, but there is no true zero point.

Quantitative Data

Data that can be quantified and verified, and is amenable to statistical manipulation. It represents the quantity of something rather than its quality.