The Human Heart

question 17

Multiple Choice

The human heart

• A) contracts as a result of stimuli from the sinoatrial node.
• B) contracts only as a result of nerve stimulation from the central nervous system.
• C) is activated primarily through the autonomic nervous system.
• D) rate is primarily under the control of the atrioventricular node.
• E) is independent of all nervous control.

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Definitions:

Control Limits

Statistical boundaries in process control that indicate the maximum and minimum values allowed for process variation to ensure quality.

Process

A process is a series of actions or steps taken in order to achieve a particular end, often structured and repeatable in business and manufacturing contexts.

Control Charts

Statistical tools used in quality control processes to analyze and understand process variations over time.

Upper Control Limits

The threshold values in statistical quality control that indicate the maximum acceptable variation in a process.