Using a Stethoscope, You Listen to a Beating Heart and Hear

question 46

Multiple Choice

Using a stethoscope, you listen to a beating heart and hear "lub-dup, lub-dup." These sounds are created by

• A) muscles in the left ventricle.
• B) blood flowing through the aorta.
• C) blood pressure differentials from chamber to chamber.
• D) blood recoiling against the closed valves.

---

Definitions:

Extraversion

A personality trait characterized by being outgoing, talkative, energetic, and sociable, often contrasted with introversion.

Introversion

This is a quality within someone's personality that emphasizes the importance of inner sensations over external influences.

Facebook Post

A content piece that a user shares on Facebook, which can include text, images, videos, and links.

Personality Traits

Enduring characteristics that describe an individual's behavior across various situations and time.