Before Boarding an Airplane on a Commercial Flight, the Traveler

question 46

Essay

Before boarding an airplane on a commercial flight, the traveler must show personal identification and a ticket to airport security. The traveler must then remove his shoes and place any carry-on items on the belt of an x-ray machine before walking through the checkpoint. How is the passage of molecules through a membrane similar to travelers passing through airport security?

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Definitions:

Antihistamine

A type of medication used to relieve symptoms of allergies, such as sneezing, itching, and runny nose, by blocking histamine action in the body.

Itchy

A sensation that causes the desire or reflex to scratch.

Central Venous Catheter

A tube placed in a large vein, usually in the neck, chest, or groin, to administer medication, fluids, obtain blood tests, and measure central venous pressure.

Sterile Gloves

Gloves that have been treated to destroy all forms of microbial life and are used in medical procedures to prevent contamination.