Podcast
Questions and Answers
Where are melanocytes and Markel's cells found?
Where are melanocytes and Markel's cells found?
Which layer of the epidermis is responsible for actively dividing cells?
Which layer of the epidermis is responsible for actively dividing cells?
In which layer do Langerhans cells reside?
In which layer do Langerhans cells reside?
Which layer of the epidermis forms a cement that acts as a barrier?
Which layer of the epidermis forms a cement that acts as a barrier?
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In which layer of the epidermis are cells filled with immature keratin filaments?
In which layer of the epidermis are cells filled with immature keratin filaments?
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How many layers of polyhedral cells are usually present in the Stratum spinosum?
How many layers of polyhedral cells are usually present in the Stratum spinosum?
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Study Notes
Melanocytes and Merkel Cells
- Melanocytes are located in the basal layer of the epidermis and produce melanin, responsible for skin pigmentation.
- Merkel cells are also found in the basal layer, acting as mechanoreceptors for touch sensation.
Epidermis Layer for Cell Division
- The stratum basale (basal layer) is where actively dividing cells are present, facilitating skin regeneration and repair.
Langerhans Cells Location
- Langerhans cells, which play a role in immune response, reside primarily in the stratum spinosum.
Barrier Formation Layer
- The stratum corneum, the outermost layer of the epidermis, forms a protective barrier through the cement-like lipids that help retain moisture and shield against pathogens.
Cells with Immature Keratin Filaments
- The stratum granulosum contains cells filled with immature keratin filaments, transitioning towards becoming keratinized.
Layers in the Stratum Spinosum
- The stratum spinosum typically consists of several layers (approximately 5-10) of polyhedral cells connected by desmosomes, which provide structural support and flexibility to the skin.
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Description
Test your knowledge about the layers of the epidermis, including Stratum Basale, Stratum Spinosum, Stratum Granulosum, Stratum Lucidum, and Stratum Corneum. Learn about the characteristics and functions of each layer.
