Before Entering the First Stage of Sleep,you Probably Feel Relaxed

question 114

Multiple Choice

Before entering the first stage of sleep,you probably feel relaxed and drowsy as you lay in your bed.This is called the ____ stage.

• A) alpha
• B) beta
• C) psi
• D) theta

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Definitions:

PQRST Complex

A series of deflections in an electrocardiogram (ECG) that represent the electrical activity during one heartbeat, including depolarization and repolarization of the atria and ventricles.

Sinus Bradycardia

A slow heartbeat rate originating from the natural pacemaker of the heart, often considered normal in healthy individuals but can indicate underlying health issues.

Electrodes

Conductive pads or plates that transmit electrical impulses, often used in medical monitoring or treatment.

Dermis Layer

The thick layer of skin beneath the epidermis that contains nerve endings, blood vessels, sweat glands, and hair follicles.