Multiple Choice
Almost 75 percent of all parasympathetic outflow travels along the:
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14. The Autonomic Nervous System
Introduction to the Autonomic Nervous System
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In a classroom demonstration of tracheostomy, folded pipe cleaners are most likely used to represent which anatomical structure?
A
The trachea
B
The carotid artery
C
The vagus nerve
D
The esophagus
Verified step by step guidance1
Understand the anatomical structure being represented: A tracheostomy involves creating an opening in the trachea, which is the windpipe responsible for air passage to and from the lungs.
Review the function and location of the trachea: The trachea is a tubular structure made of cartilage rings that maintain its shape and prevent collapse during breathing. It is located anterior to the esophagus and extends from the larynx to the bronchi.
Consider the physical properties of pipe cleaners: Pipe cleaners are flexible yet can hold a tubular shape, making them ideal for representing the trachea's structure, including its rigidity and hollow nature.
Eliminate other options based on anatomical differences: The carotid artery is a blood vessel, the vagus nerve is a nerve, and the esophagus is a muscular tube for food passage. None of these structures match the tubular, cartilaginous characteristics of the trachea.
Conclude that folded pipe cleaners are most likely used to represent the trachea, as their physical properties align closely with the anatomical structure and function of the trachea.
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