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Microbial Diseases of the Skin and Eyes

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Questions and Answers

What is the main component of the outermost layer of the epidermis?

Live cells containing collagen

Dead cells containing keratin (correct)

Live cells containing keratin

Dead cells containing collagen

What inhibits the growth of many microorganisms in perspiration?

Antimicrobial peptides

Lysozyme

Salt (correct)

Sebum

What is the primary function of sebum secreted by oil glands?

Breaks down the cell walls of bacteria

Prevents skin and hair from drying out (correct)

Promotes the growth of certain pathogens

Provides energy for microbial growth

What provides moisture and some nutrients for microbial growth on the skin?

Perspiration Signup and view all the answers

Which part of the skin provides passageways for microorganisms to enter and penetrate deeper tissues?

Hair follicles, sweat-gland ducts, and oil gland ducts Signup and view all the answers

What is the primary function of the stratum corneum in the epidermis?

To provide a waterproofing protein called keratin Signup and view all the answers

What is the main purpose of sebum secreted by oil glands?

To prevent skin and hair from drying out Signup and view all the answers

What inhibits many microorganisms in perspiration?

Salt Signup and view all the answers

What provides passageways for microorganisms to enter and penetrate deeper tissues in the skin?

Hair follicles, sweat-gland ducts, and oil gland ducts Signup and view all the answers

What is the composition of sebum secreted by oil glands?

A mixture of lipids, proteins, and salts Signup and view all the answers

Study Notes

Skin Composition and Function

The main component of the outermost layer of the epidermis is the stratum corneum.
Perspiration, which is salty and acidic, inhibits the growth of many microorganisms.
Sebum secreted by oil glands has a primary function of providing moisture and some nutrients for microbial growth on the skin.
The primary function of sebum secreted by oil glands is to provide moisture and some nutrients for microbial growth on the skin.
Sweat glands and hair follicles provide passageways for microorganisms to enter and penetrate deeper tissues in the skin.
The primary function of the stratum corneum in the epidermis is to provide a barrier against environmental stressors.
Perspiration, which is salty and acidic, inhibits many microorganisms, thereby preventing infection.
Sebum secreted by oil glands is composed of a mixture of lipids, including triglycerides, wax esters, and squalene.

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Description

Test your knowledge of microbial diseases affecting the skin and eyes with this quiz. Learn about the structure and function of the skin as you explore the epidermis and dermis. Understand the layers of epithelial cells and their role in protecting the body from pathogens.