Asked by Silvia Torres on Jul 07, 2024
Verified
The brain is highly active but the large muscles are extremely relaxed during
A) stage 2 sleep.
B) stage 4 sleep.
C) REM sleep.
D) all stages of sleep, equally.
Large Muscles
The bigger muscle groups in the body, such as the chest, back, and leg muscles, which are often the focus of strengthening exercises.
REM Sleep
A distinct phase of sleep characterized by rapid eye movements, increased brain activity, and vivid dreaming, playing a key role in learning and memory.
Brain
The organ located in the head of animals, including humans, that is the center of the nervous system, controlling functions such as perception, thinking, memory, and decision making.
- Understand the attributes of REM sleep and how they diverge from non-REM sleep stages.
- Recognize the significance of brain waves in indicating sleep stages.
Verified Answer
MM
Myrrha MususaJul 14, 2024
Final Answer :
C
Explanation :
During REM (rapid eye movement) sleep, the brain is highly active, and the large muscles of the body are extremely relaxed, causing temporary paralysis. This is believed to be an evolutionary adaptation to prevent the individual from acting out their dreams and potentially harming themselves or others. In contrast, during stages 2 and 4 of non-REM sleep, brain activity decreases, and muscle tone remains relatively high.
Learning Objectives
- Understand the attributes of REM sleep and how they diverge from non-REM sleep stages.
- Recognize the significance of brain waves in indicating sleep stages.