By William Montagna, Giuseppe Prota, John A. Kenney Jr.
This e-book is the 1st to be aware of the constitution and serve as of black dermis. There are a few physiological and structural ameliorations among black and white pores and skin; a space of severe curiosity is that of ameliorations in accordance with sun and different destructive brokers. An realizing of reaction to harmful brokers is imperative to the issues of forestalling or forestalling the early results of getting older in pores and skin (a goal that's accountable for the present growth in dermatological research).This publication offers a concise multi-disciplinary perception into the biology, body structure, and chemistry of Read more...
summary: This publication is the 1st to be aware of the constitution and serve as of black pores and skin. There are a few physiological and structural variations among black and white pores and skin; a space of severe curiosity is that of transformations in line with sun and different destructive brokers. An realizing of reaction to destructive brokers is significant to the issues of forestalling or forestalling the early results of getting older in pores and skin (a aim that's answerable for the present growth in dermatological research).This ebook offers a concise multi-disciplinary perception into the biology, body structure, and chemistry of
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Additional resources for Black Skin. Structure and Function
1972), however, found that whereas darker skinned Blacks possess “nonaggregated” large mela nosomes, the lighter colored ones have both nonaggregated large mela nosomes and aggregated smaller ones. The size of the melanosomes appar ently determines the way in which they are distributed. In sections stained with the M asson-Fontana silver technique, the melanosomes in both black and white people are dispersed throughout the epidermis, even inside the corneocytes (Figs. 2-9—2-11). 50 2. The Structure of Black Skin FIGURE 2-32.
Comments on the Structure of Black Skin 51 FIGURE 2-33. TEM of a fibroblast (F) in the facial papillary dermis of a young, black woman, near the basal lamina (BL) under two epidermal cells (E). 5440X . 52 2. The Structure of Black Skin FIGURE 2-34. Melanin granules from melanocytes (M) from the face of a young, black American woman seem to be dropping into the papillary dermis (PD) where large and small melanophages (Mp) phagocytize them. A 2-/x,m-plastic section stained with the FontanaM asson technique.
There are many anchoring fibrils (A) in the papillary dermis (Dm). Note the keratin filaments (F) and the single, membrane-bound melanosomes (M) inside the keratino cyte. Hemidesosomes (H). 24,400X. FIGURE 2-13. Tubules of a mixed eccrine-apocrine gland from the facial skin of a black American woman lined primarily with cells that have a reticulated cytoplasm. Whereas these cells have a general resemblance to clear cells, they contain a sparse amount of glycogen (clear cells are usually laden with glycogen granule).