What Prevents the Trachea from Collapsing

question 45

Multiple Choice

What prevents the trachea from collapsing?

• A)The internal air pressure within the trachea
• B)The surrounding muscles
• C)The internal epithelium
• D)The C-shaped cartilaginous rings
• E)Nothing,it pulsates (expands and contracts)with each breath.

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Definitions:

Animals

Multicellular, eukaryotic organisms in the kingdom Animalia, characterized by their ability to move, responsive behavior to environment, and consumption of organic material.

Experiment

A procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

Government Board

A group of appointed or elected members who oversee the activities of a public or governmental organization.

Protocols

Established sets of rules and procedures for conducting scientific experiments, medical treatments, or communications between devices in a network.