The Cardiac Muscle

question 257

Multiple Choice

The cardiac muscle

• A) extracts oxygen and nutrients from the blood within its chambers.
• B) receives its blood supply primarily during ventricular systole when blood is forced into the vessels supplying the heart.
• C) receives its blood supply as the blood returning to the heart from the lung passes through the cardiac circulation before being pumped to the systemic circulation.
• D) receives most of its blood supply during ventricular diastole by means of the coronary circulation.
• E) none of these answers.

---

Definitions:

DNS

Domain Name System, an internet service that translates domain names into IP addresses, facilitating the location of computer services and devices.

IP Address

A unique string of numbers separated by periods that identifies each computer using the Internet Protocol to communicate over a network.

URL

Uniform Resource Locator, a reference or address that can be used to access resources on the internet.

Web Page

A document accessible via a web browser, typically written in HTML, forming part of the World Wide Web.