What Is Considered the Pacemaker of the Heart

question 33

Multiple Choice

What is considered the pacemaker of the heart?

• A) medulla oblongata
• B) the sinoatrial node
• C) the atrioventricular node
• D) Purkinje fibers
• E) atrioventricular bundle

---

Definitions:

Financial Period

A specific period of time covered by financial statements or reports, usually a fiscal quarter or year.

Actuarial Gains

Increases in the estimated value of a company’s pension plan benefits, resulting from changes in assumptions or improved performance.

Experience Adjustments

Changes to actuarial assumptions regarding pensions or other post-employment benefits based on differences between prior predictions and actual experience.

Actuarial Assumptions

Assumptions about future events affecting pension and insurance contracts, used to estimate the value of liabilities and premiums.