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Anatomy and Histology: The Skin Layers

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Questions and Answers

Which cells are firmly attached to each other by small interlocking cytoplasmic processes and abundant desmosomes?

Langerhans cells

Merkel cells

Melanocytes

Keratinocytes (correct)

Which cells are the only ones that can synthesize melanin?

Keratinocytes

Melanocytes (correct)

Merkel cells

Langerhans cells

What is the main function of Langerhans cells in the epidermis?

Taking up exogenous antigen and processing it

Forming a thick and tough peripheral protein coating

Synthesizing melanin

Specialized macrophages with a key role in immune reactions (correct)

What do Merkel cells do in the epidermis?

Concentrate in localized sensory structures and function as mechanoreceptors Signup and view all the answers

What do granular layer cells contain that merge with tonofibrils?

Keratohyalin granules Signup and view all the answers

What is the main function of the granular layer in the epidermis?

Synthesizing keratins Signup and view all the answers

What distinguishes Langerhans cells from other epidermal cells?

Possession of surface receptors for C3b Signup and view all the answers

Which feature is characteristic of Merkel cells in the epidermis?

Lack of desmosomes and tonofibrils Signup and view all the answers

What is the role of melanocytes in the epidermis?

Synthesizing melanin Signup and view all the answers

What do the cells in the granular layer contain that merge with tonofibrils?

Large irregular basophilic granules of keratohyalin Signup and view all the answers