In This Diagram of the Heart, a Is the ____

question 93

Multiple Choice

In this diagram of the heart, A is the ____ and B is the ____.

• A)AV node; cardiac pacemaker
• B)SA node; septum
• C)AV node; SA node
• D)SA node; AV node
• E)septum; cardiac pacemaker

---

Definitions:

CPU

The Central Processing Unit, often simply called the processor, is a crucial piece of hardware in a computer system responsible for carrying out instructions of a computer program by performing arithmetic, logical, control, and input/output operations.

Excess Processor Requests

Occurs when applications or processes request more CPU time than is available, leading to potential system slowdowns or instability.

Application Settings

Configurations within software applications that allow users to customize and control aspects of the application’s behavior and functionality.

S/MIME

Stands for Secure/Multipurpose Internet Mail Extensions, a protocol for sending digitally signed and encrypted messages to ensure the confidentiality and integrity of email communications.