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Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909

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BuyFindarrow_forward

Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909
Textbook Problem

Delta waves are associated with which of the following stages?

1. Stage N1 non-REM sleep

2. Stage N2 non-REM sleep

3. Stage N3 non-REM sleep

4. Stage wake

5. REM sleep

A. 3 only

B. 1 and 2 only

C. 2 and 3 only

D. 3 and 5 only

Summary Introduction

Introduction:

The test that is used to measure electrical activity in the brain is known as an electroencephalogram (EEG). It measures the frequency, amplitude and polarity of the brain waves. The delta waves are low-frequency waves seen in the later stages of the sleep cycle. These wave reduce external awareness to a massive extent and help medicate healing and regeneration of the body in deep sleep.

Explanation

Justification/ Explanation for the correct answer:

Option (a) is, ‘3 only’. The delta waves are the deep sleep waves that are found only during the later stages of the sleep cycle. These waves are associated with the healing and restoring of the mind and the body. The delta waves are only observed in stage 3 non-REM (non-rapid-eye-movement) type sleep, which is the state of least consciousness. Hence, option (a) is correct.

Explanation for the incorrect answer:

Option (b) is, ‘1 and 2 only’. The N1 and N2 non-REM stages are the light sleep stages, wherein the brain activity is high...

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