In the Process of Swallowing,food Cannot Normally Enter the Trachea

question 32

Multiple Choice

In the process of swallowing,food cannot normally enter the trachea because the ________.

• A)tongue directs the flow of food down the esophagus and away from the trachea
• B)esophageal sphincter shuts off the passage to the larynx
• C)epiglottis covers the larynx
• D)trachea does not connect to the esophagus

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Definitions:

Receptor Sites

Specific locations on the surface of a cell or within a cell that can bind with substances such as hormones, neurotransmitters, or drugs.

Prozac

A brand name for fluoxetine, a selective serotonin reuptake inhibitor (SSRI) used to treat depression and other mood disorders.

Reabsorption

The process by which the kidneys filter the blood, reabsorbing what the body needs and excreting the rest.

Serotonin

A neurotransmitter involved in the regulation of mood, appetite, and sleep, and implicated in depression when levels are insufficient.