20 Questions
Which layer of the epidermis is the most superficial?
Stratum corneum
What is the main function of the Stratum corneum?
Barrier to light
What makes the Stratum corneum water-repellent?
Lamellar granules
What happens to the Stratum corneum when exposed to constant friction?
It increases in depth
Which layer of the epidermis is responsible for impermeable protection?
Stratum corneum
Which layer of the epidermis is found only in thick skin?
Stratum lucidum
Which layer of the epidermis is known as Malpighi's layer?
Stratum spinosum
Which layer of the epidermis is the deepest?
Stratum basale
What is the main function of the Stratum granulosum?
Water-repellency
What is the main function of the Stratum basale?
Cellular proliferation
Which layer of the epidermis is responsible for providing strength and flexibility to the skin?
Stratum Spinosum
Which layer of the epidermis is ONLY present in thick skin, such as the palms of the hands and soles of the feet?
Stratum Lucidum
Which layer of the epidermis is the deepest and contains cuboidal cells, as well as Merkel cells, Langerhans cells, and melanocytes?
Stratum Basale
Which layer of the epidermis contains 3-5 layers of flat keratinocytes and acts as a physical barrier to microorganisms?
Stratum Granulosum
Which layer of the epidermis contains keratinocytes with lamellar granules that repel water?
Stratum Granulosum
Which layer of the epidermis contains dead keratinocytes without a nucleus and is ONLY present in thick skin?
Stratum Lucidum
Which layer of the epidermis is responsible for germinative proliferation and has a high proliferation rate of stem cells?
Stratum Basale
Which layer of the epidermis contains keratinocytes that appear spiny in histological preparations and are rounded and big in live skin?
Stratum Spinosum
Which layer of the epidermis contains cells that degenerate and die in the top layers and prevent water loss?
Stratum Granulosum
Which layer of the epidermis is required for skin grafts to be successful?
Stratum Basale
Test your knowledge of the epidermal layers with this quiz. Learn about the different layers and their functions, including the deepest layer, stratum basale. Explore the cells and structures found in these layers, such as keratinocytes, Merkel cells, Langerhans cells, and melanocytes.
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