Human Skin Anatomy

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Which layer of the epidermis is responsible for providing a protective barrier against water loss and external pathogens?

Stratum corneum (correct)

Stratum spinosum

Stratum basale

Stratum granulosum

What is the primary function of the stratum granulosum layer of the epidermis?

Melanin synthesis and distribution

Cell division and proliferation

Lipid secretion and waterproofing

Keratin production and deposition (correct)

Which cell type is responsible for the continuous renewal of the epidermis?

Merkel cells

Melanocytes

Langerhans cells

Keratinocytes (correct)

What is the role of the stratum lucidum in the epidermis?

Transitioning keratinocytes to the stratum corneum Signup and view all the answers

Which layer of the epidermis is responsible for the production and storage of keratohyalin granules?

Stratum granulosum Signup and view all the answers

Which layer of the epidermis is the outermost layer and primarily composed of dead, keratinized cells?

Stratum corneum Signup and view all the answers

In which layer of the epidermis do keratinocytes accumulate keratohyalin granules and begin the process of cornification?

Stratum granulosum Signup and view all the answers

Which layer of the epidermis is present only in thick skin, such as on the palms and soles, and appears as a clear layer?

Stratum lucidum Signup and view all the answers

Which of the following is NOT a function of keratinocytes in the epidermis?

Synthesizing melanin Signup and view all the answers

Which layer of the epidermis is the deepest layer, containing stem cells that continuously divide to replenish the upper layers?

Stratum basale Signup and view all the answers

Human Skin Anatomy

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Questions and Answers

Which layer of the epidermis is responsible for providing a protective barrier against water loss and external pathogens?

What is the primary function of the stratum granulosum layer of the epidermis?

Which cell type is responsible for the continuous renewal of the epidermis?

What is the role of the stratum lucidum in the epidermis?

Which layer of the epidermis is responsible for the production and storage of keratohyalin granules?

Which layer of the epidermis is the outermost layer and primarily composed of dead, keratinized cells?

In which layer of the epidermis do keratinocytes accumulate keratohyalin granules and begin the process of cornification?

Which layer of the epidermis is present only in thick skin, such as on the palms and soles, and appears as a clear layer?

Which of the following is NOT a function of keratinocytes in the epidermis?

Which layer of the epidermis is the deepest layer, containing stem cells that continuously divide to replenish the upper layers?

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