Which of the Following Features Make Skin a Formidable Barrier

question 9

Multiple Choice

Which of the following features make skin a formidable barrier against pathogen invasion? (Select all that apply)

• A) keratinized epidermal cells
• B) tight junctions to prevent pathogen penetration between cells
• C) the sweeping action of cilia to remove pathogens
• D) continuous regeneration of epidermal cells allows sloughing off of surface cells and any associated pathogens

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Definitions:

Forcing Function

A forcing function is an external function or action applied to a system that drives its response, often used in differential equations to model external influences.

PLC

A Programmable Logic Controller is a ruggedized digital computer used for the automation of various electromechanical processes, such as control of machinery on factory assembly lines.

Programming Device

A tool or equipment used to program the firmware or software of electronic devices, often used in manufacturing, development, or maintenance.