The Skin

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20 Questions

Which of the following is the primary function of the skin?

Prevents the entry of disease-causing microbes

What is the largest organ of the human body?


Which layer of the skin is composed of stratified squamous epithelium?


What is the main protein found in the cells of the epidermis?


Which layer of the epidermis provides the skin's nonspecific defense against invasive pathogens?

Stratum corneum

Which layer of the skin contains blood vessels and nerve cells?


Which of the following structures are NOT found in the dermis?

Blood vessels

What do oil glands in the skin produce?

Oils to keep the skin and hair flexible

What is the function of sweat glands in the skin?

Regulate body temperature

Which layer of the skin is vascular?


Which glands are responsible for secreting oil onto the hair shaft?

Sebaceous glands

Where are sebaceous glands located?

Wherever there is hair

What is the main function of sweat glands?

Producing sweat in response to internal temperature

What happens when blood vessels in the dermis dilate?

A larger volume of blood flows from the core of the body to the skin

What is the function of the hair follicle?

To produce a hair shaft

What is the innermost layer of the hair shaft responsible for?

Coloring the hair

What happens when the blood flow through the bulb of the hair follicle decreases?

The hair shaft is lost

What are nails made of?

Keratinized cells

Where do nails arise from?

The lunular at the base of the nail bed

What is the cuticle?

A layer of epidermis covering the base of the nail

Test your knowledge about the skin and its important functions in the human body. Learn about its role as a physical barrier, protection against pathogens, regulation of water content and temperature, and production of vitamin D.

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