Which Structure Is Considered the "Pacemaker" of the Heart

question 56

Multiple Choice

Which structure is considered the "pacemaker" of the heart?

• A) AV node
• B) SA node
• C) bundle of His
• D) Purkinje fibers

---

Definitions:

Health Care Organizations

Entities that provide medical services, support, and information to patients and can include hospitals, clinics, and insurance companies.

Union Representation

The act of labor unions representing the interests of workers in negotiations with employers regarding wages, working conditions, benefits, and other employment terms.

Decertifying

The process of revoking or withdrawing certification or official recognition, often used in the context of labor unions or professional certifications.

Removing Union

The process or action of eliminating a labor union's presence or influence within a workplace or company.