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Questions and Answers
Which layer of the skin is avascular and regenerates itself every 4 to 6 weeks?
Which layer of the skin is avascular and regenerates itself every 4 to 6 weeks?
- Subcutaneous tissue
- Epidermis (correct)
- Dermis
- Basement membrane zone
Which layer of the epidermis consists of dead keratinocyte cells and easily sheds off?
Which layer of the epidermis consists of dead keratinocyte cells and easily sheds off?
- Stratum corneum (correct)
- Stratum spinosum
- Stratum granulosum
- Stratum basale
Which layer of the epidermis contains Langerhans cells in addition to keratinocytes?
Which layer of the epidermis contains Langerhans cells in addition to keratinocytes?
- Stratum basale
- Stratum spinosum
- Stratum granulosum (correct)
- Stratum lucidum
Where is the fifth layer, the stratum lucidum, found in the skin?
Where is the fifth layer, the stratum lucidum, found in the skin?
What is the primary cell type in the epidermis that produces keratin?
What is the primary cell type in the epidermis that produces keratin?
Flashcards
Epidermis
Epidermis
The outer layer of skin that is avascular and regenerates every 4 to 6 weeks.
Stratum corneum
Stratum corneum
The outermost layer of the epidermis made of dead keratinocyte cells that shed easily.
Stratum granulosum
Stratum granulosum
A layer of the epidermis that contains Langerhans cells and keratinocytes.
Stratum lucidum
Stratum lucidum
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Keratinocytes
Keratinocytes
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Study Notes
Epidermis Layers
- The stratum corneum is avascular and regenerates itself every 4 to 6 weeks.
- The stratum corneum consists of dead keratinocyte cells and easily sheds off.
- The stratum spinosum contains Langerhans cells in addition to keratinocytes.
- The stratum lucidum, the fifth layer, is found in the skin on the palms of the hands and soles of the feet.
- Keratinocytes are the primary cell type in the epidermis that produce keratin.
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