Why Does the Upper Third of the Esophagus Have Skeletal

question 144

Multiple Choice

Why does the upper third of the esophagus have skeletal muscle in its wall?

• A)so you do not choke
• B)the first phase of swallowing is voluntary
• C)so that peristalsis can occur
• D)the first phase of swallowing is involuntary

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Definitions:

Salivation

The production and release of saliva from glands in the mouth, often in response to the sight, smell, or taste of food.

Pavlov

Refers to Ivan Pavlov, a Russian physiologist known for his work in classical conditioning, particularly his experiments with dogs that led to the discovery of the conditioned reflex.

Conditioned Stimulus

A previously neutral stimulus that, after association with an unconditioned stimulus, comes to trigger a conditioned response.

Conditioned Response

A learned reaction to a specific stimulus as a result of conditioning, demonstrated in Pavlov's experiments with dogs.