The Tempo of the Heartbeat Is Set by a Cluster

question 18

Short Answer

The tempo of the heartbeat is set by a cluster of specialized cardiac muscle cells called the ________.

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Definitions:

Field

A specific piece of data; a component of a database record that represents one piece of information within the record.

Sequential Integers

A series of integers (whole numbers) arranged in an ordered sequence where each number differs from the previous one by a constant step, typically one.

Number

An object in mathematics that is employed for counting, measuring, and labeling.