-Directional Terms Are Important in the Study of Anatomy

question 49

Multiple Choice

-Directional terms are important in the study of anatomy. What does "C" represent?

• A) Median
• B) Right
• C) Left
• D) Inferior
• E) Lateral

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Definitions:

Paradoxical Sleep

Another term for REM (Rapid Eye Movement) sleep, a sleep stage characterized by vivid dreaming, increased brain activity, and temporary muscle paralysis.

Voluntary Muscles

Muscles that are under conscious control, used in actions such as speaking, walking, and grabbing objects.

SCN

Stands for the Suprachiasmatic Nucleus, a small region in the brain that regulates the circadian rhythms, including sleep-wake cycles.

Pineal Gland

A small endocrine gland in the vertebrate brain that produces the hormone melatonin, involved in regulating sleep patterns.