A Motor Unit Consists of

question 49

Multiple Choice

A motor unit consists of

• A) multiple motor neurons and multiple muscle fibers.
• B) a single motor neuron and the multiple muscle fibers it controls.
• C) multiple motor neurons and the one muscle fiber they control.
• D) one synaptic terminal button, a cleft, and an acetylcholine receptor.
• E) an end plate, a T-tubule, and sarcoplasmic reticulum.

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Definitions:

Standard Cost System

An accounting method that uses cost estimates for labor, materials, and overhead to assign costs to products, facilitating variance analysis between expected and actual costs.

Actual Results

The real financial or operational outputs of a business, as opposed to projections or estimates.

Variable Overhead Rate Variance

The difference between the actual variable overhead incurred and the expected (or standard) variable overhead allocated, based on activity level.

Lubricants

Substances applied to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move.