Regarding Olfaction, Which of the Following Statements Is FALSE

question 698

Multiple Choice

Regarding olfaction, which of the following statements is FALSE?

• A)There are roughly five million nerve fibers embedded in the lining of the upper nasal passages.
• B)The theory of smell that holds that odors are related to the shapes of chemical molecules is known as the opponent-process theory.
• C)Five people out of 100 experience some degree of anosmia.
• D)Blows to the head can tear the olfactory nerve and cause anosmia.

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Definitions:

Latent Period

The time interval between the application of a stimulus and the response, common in muscle physiology and reaction time studies.

Excitation-Coupling

The process linking muscle fiber excitation to contractions via the transduction of electrical signals to mechanical actions.

Refractory

Resistant to treatment or control, often used to describe a period of unresponsiveness or insensitivity to stimuli.

Power Stroke

The phase in muscle contraction where the myosin head pivots, pulling the actin filament towards the center of the sarcomere, shortening the muscle.