Overview of Skin and Its Importance

Front

How many dead skin cells does the human body shed every minute?

Back

Approximately 30,000 to 40,000 dead skin cells.

Front

What is the average surface area of an adult's skin?

Back

About 20 square feet, comparable to half a pool table.

Front

What does the integumentary system include?

Back

Skin, hair, nails, and associated glands.

Front

What are the three primary layers of the skin?

Back

Epidermis (outer layer), dermis (middle layer), and hypodermis (innermost layer).

Front

What is the function of the epidermis?

Back

Provides a barrier against pathogens and maintains moisture.

Front

What does the dermis contain?

Back

Blood vessels and nerves.

Front

What is the role of the hypodermis?

Back

Anchors the skin to underlying structures.

Front

What are sensory nerve endings responsible for?

Back

Detecting stimuli such as touch, temperature, and pain.

Front

What is the function of hair follicles?

Back

Responsible for hair growth and nourishing the hair shaft.

Front

How does the skin protect against infection?

Back

Acts as a physical barrier and contains immune cells that respond to pathogens.