Most Sleeping Time Is Spent in

question 1

Multiple Choice

Most sleeping time is spent in

• A) REM sleep.
• B) stages 1 and 2 sleep.
• C) stage 4 sleep.
• D) very light sleep.

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Definitions:

Spinalis Cervicis

A neck muscle that is part of the spinalis muscle group, responsible for extending and stabilizing the cervical spine.

External Anal Sphincter

A muscle that surrounds the anus, controlling the expulsion of feces from the body.

Levator Ani Iliococcygeus

A component of the levator ani muscle, which supports the pelvic organs and helps in maintaining fecal continence.

External Urethral Sphincter

A circular muscle that controls urination by constricting or relaxing to allow the flow of urine from the bladder.