Use the Following Answer Code to Indicate Which Factor Involved

question 82

Short Answer

Use the following answer code to indicate which factor involved in the initiation and spread of cardiac excitation is being identified
a.SA node
b.AV node
c.bundle of His and Purkinje system
d.gap junctions
-Only point of electrical contact between the atria and ventricles

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Definitions:

Perfectly Competitive

A market structure characterized by a large number of small firms, identical products, and free entry and exit, leading to price taking behavior.

Long-Run Equilibrium

A state in which all factors of production and costs are variable, allowing firms to enter and exit the market, and no economic forces are pushing for change.

Efficient Scale

The level of production at which a company or industry can produce its products at the lowest average cost, optimizing resource use.

Identical Costs

Costs that are the same in amount or value, often referring to uniform expenses across different units or operations.