An Individual Is in a Sleep Lab and You Are

question 22

Multiple Choice

An individual is in a sleep lab and you are trying to determine when she enters stage 2 sleep. What would you look for in the EEG tracings?

• A)Alpha waves
• B)Beta waves
• C)Delta waves
• D)Sleep spindles
• E)Theta waves

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Definitions:

Platysma

A thin, superficial muscle located in the neck, responsible for lowering the jaw and drawing the lower lip and corners of the mouth down.

Temporoparietalis

A muscle located in the region of the temporal and parietal bones, involved in moving the scalp and ear.

Occipitofrontal Muscle

A muscle located on the forehead, involved in raising the eyebrows and wrinkling the forehead skin.

Risorius Muscle

A facial muscle associated with expressions such as smiling and laughing, extending from the cheekbone to the corners of the mouth.