The Location of the Heart's Pacemaker Is a Specialized Region

question 37

Multiple Choice

The location of the heart's pacemaker is a specialized region of cardiac muscle called the

• A)atrioventricular node.
• B)sinoatrial node.
• C)Purkinje fibers.
• D)left ventricle.

---

Definitions:

Purchasing Power

The ability of an individual or group to buy goods or services, often considered in relation to the amount of goods or services that one's money can buy.

Urban Population

The segment of a country's population that resides within towns and cities as defined by governmental standards.

Population Growth

An increase in the number of people that reside in a country or region over a specific period of time.

Infrastructure

The fundamental facilities and systems serving a country, city, or area, including transportation and communication systems, water and power lines, and public institutions like schools and hospitals.