Wound care certification Question and
answers correct 2025/2026
How much blood does the skin receive? - correct answer ✔1/3 of the bodies blood volume
How often do humans shed and regrow outer skin cells? - correct answer ✔Every 27 days
What are the functions of the skin? - correct answer ✔1. Protection from bacterial invasion and against
external elements (water, chemical and mechanical, bacterial and viral, ultraviolet radiation).
2. Prevents excessive loss of fluids and electrolytes. Striving always for homeostatic environment.
3. Produces sebum, a lipid rich, oily substance.
What is sebum, a lipid rich oily substance secreted by? - correct answer ✔Sebaceous glands
As sebum and sweat mix up on the skin surface, they form a protective layer often referred to as the? -
correct answer ✔The acid Mantle
The acid mantle gives the skin a particular level of acidity characterized by pH. What is the skins PH? -
correct answer ✔4 to 5.5 (slightly acidic)
If the acid mantle balance is disrupted or loses its acidity, the skin becomes more prone to? - correct
answer ✔Damage and infection
What are the functions/facts of melanin in our skin? - correct answer ✔1. Protection against UV rays.
2. Sun exposure increases melanin production.
3. Levels of melanin depend on race and amount of sunlight exposure.
, Our skin senses the environment, what are the basic types of sensations? - correct answer ✔Pain,
touch, temperature, and pressure
Our skin retains water. What are the tightly packed cells called that provide protection against water
loss? - correct answer ✔Stratham corneum
When white blood cells in the skin capture and destroy bacteria invading the epidermis? - correct
answer ✔Immunological response
The epidermis has 5 layers composed of epithelial cells. What are they? - correct answer ✔1. Stratham
corneum.
2. Stratham lucidum.
3. Stratham Granulosum
4. Stratham spinosum.
5. Stratham germinativum
Of the epidermis, what is the superficial layer of dead skin cells called? It is the outermost layer. - correct
answer ✔Strathum corneum (horny layer)
Of the epidermis, what is the clear layer of cells called? Only present in thick skin. - correct answer
✔Strathum lucidum
Of the epidermis, which layer is multi layered, 1-5 cells thick, cells become compressed, and aids in
keratin formation? - correct answer ✔Strathum granulosum
Of the epidermis, which is several layers thick, cells of this layer begins to produce keratin, and cells
begins to flatten? A.k.a. spiny layer. - correct answer ✔Strathum spinosum
answers correct 2025/2026
How much blood does the skin receive? - correct answer ✔1/3 of the bodies blood volume
How often do humans shed and regrow outer skin cells? - correct answer ✔Every 27 days
What are the functions of the skin? - correct answer ✔1. Protection from bacterial invasion and against
external elements (water, chemical and mechanical, bacterial and viral, ultraviolet radiation).
2. Prevents excessive loss of fluids and electrolytes. Striving always for homeostatic environment.
3. Produces sebum, a lipid rich, oily substance.
What is sebum, a lipid rich oily substance secreted by? - correct answer ✔Sebaceous glands
As sebum and sweat mix up on the skin surface, they form a protective layer often referred to as the? -
correct answer ✔The acid Mantle
The acid mantle gives the skin a particular level of acidity characterized by pH. What is the skins PH? -
correct answer ✔4 to 5.5 (slightly acidic)
If the acid mantle balance is disrupted or loses its acidity, the skin becomes more prone to? - correct
answer ✔Damage and infection
What are the functions/facts of melanin in our skin? - correct answer ✔1. Protection against UV rays.
2. Sun exposure increases melanin production.
3. Levels of melanin depend on race and amount of sunlight exposure.
, Our skin senses the environment, what are the basic types of sensations? - correct answer ✔Pain,
touch, temperature, and pressure
Our skin retains water. What are the tightly packed cells called that provide protection against water
loss? - correct answer ✔Stratham corneum
When white blood cells in the skin capture and destroy bacteria invading the epidermis? - correct
answer ✔Immunological response
The epidermis has 5 layers composed of epithelial cells. What are they? - correct answer ✔1. Stratham
corneum.
2. Stratham lucidum.
3. Stratham Granulosum
4. Stratham spinosum.
5. Stratham germinativum
Of the epidermis, what is the superficial layer of dead skin cells called? It is the outermost layer. - correct
answer ✔Strathum corneum (horny layer)
Of the epidermis, what is the clear layer of cells called? Only present in thick skin. - correct answer
✔Strathum lucidum
Of the epidermis, which layer is multi layered, 1-5 cells thick, cells become compressed, and aids in
keratin formation? - correct answer ✔Strathum granulosum
Of the epidermis, which is several layers thick, cells of this layer begins to produce keratin, and cells
begins to flatten? A.k.a. spiny layer. - correct answer ✔Strathum spinosum
