The Stimulus for Olfaction Is

question 71

Multiple Choice

The stimulus for olfaction is

• A) a volatile substance with a molecular weight between 15 and 300.
• B) a molecule that has a high molecular weight.
• C) an electromagnetic pulse delivered to the nose.
• D) a water soluble molecule.
• E) a fat soluble molecule.

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Definitions:

REM Sleep

A phase of sleep characterized by rapid eye movements, low muscle tone, and vivid dreams; associated with brain activity similar to wakefulness.

Sleep Apnea

An ailment disrupting sleep by causing breathing to pause or become shallow during the night.

Temporary Cessations

Short breaks or interruptions in an activity or process.

Breathing

The process of taking air into and expelling it from the lungs to facilitate gas exchange with the internal environment.