In Which Stage of Sleep Does the Body Temperature Drop

question 41

Multiple Choice

In which stage of sleep does the body temperature drop, breathing slows, and blood pressure falls?

• A) 2 and 3
• B) 4 only
• C) 3 only
• D) 3 and 4
• E) 5

---

Definitions:

Ectopic Pacemaker

An abnormal group of cells outside the normal pacemaker region of the heart that triggers a heartbeat.

Premature Junctional Contractions

Abnormal heartbeats originating from the junctional tissue between the atria and ventricles, often occurring before the expected heartbeat.

AV Node

Atrioventricular node; the beginning of the bundle of His in the right atrium; nerve fibers responsible for the contraction of the ventricles.

High-Density Lipoprotein

A type of cholesterol known as "good" cholesterol because it helps remove other forms of cholesterol from your bloodstream.