The Action Potential of Cardiac Pacemaker Cells Is Caused by

question 65

Multiple Choice

The action potential of cardiac pacemaker cells is caused by

• A)inward diffusion of Na⁺.
• B)inward diffusion of Ca²⁺.
• C)inward diffusion of K⁺.
• D)outward diffusion of K⁺.

---

Definitions:

Income Taxes

Taxes imposed by the government on the income generated by businesses and individuals within their jurisdiction.

Cost of Goods Sold

The direct costs attributable to the production of the goods sold by a company, including material and labor expenses.

Cash Budget

Budget that shows cash inflows and outflows during a period of time.

Shareholders' Equity

The portion of a company's assets that belongs to shareholders after liabilities have been subtracted; also known as net assets or equity.