The Property of Heart Muscle to Contract in the Absence

question 147

Multiple Choice

The property of heart muscle to contract in the absence of neural or hormonal stimulation is called

• A) intrinsic.
• B) extrinsic.
• C) automaticity.
• D) self-replicating.
• E) self-starting.

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Definitions:

Green Chemistry

An approach to chemical production that seeks to reduce or eliminate hazardous substances and environmental impact.

Raw Materials

These are the basic substances or components used in the production of goods or services.

Atom Economy

refers to a measure in green chemistry that evaluates the efficiency of a synthetic chemical process in terms of the amount of starting materials that end up in the final product.

Stoichiometric Reagents

Chemical substances used in reactions in exact proportions as determined by the reaction equations.