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27 Cards in this Set
- Front
- Back
What layers are found here?
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Dermis and epidermis
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What two types of skin here?
What else is different about them? |
Thick skin and thin skin
Thick: a thick cornified layer and stratum lucidum Thin: thin cornified layer, lacks a stratum lucidum and has hair follicles |
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What structure here?
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Dermal papillae:
also notice layers of epithelium Stratum Basal Spinosum Granulosum Corneum Papillary layer Reticular layer Simple sweat gland (Eccrine c simple coiled tube) -Duct |
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Which layer here?
Unique chars? |
Stratum basal and stratum spinosum
Melanocytes (with colorless cytoplasm) Prickle cells |
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What layers here?
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Stratum Basal (melanocytes here too)
Stratum spinosum (prickle cells) (stratum germinativum) |
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What is this layer?
Other layers or features? |
Stratum granulosum (has keratohyalin granules in the cytoplasm)
notices stratum corneum above |
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What is here?
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Stratum lucidum
Reticular layer Papillary layer Stratum corneum dermal papillae (dermal ridge) |
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What cell? Others?
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Stratum spinosum
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What present?
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Papillary and reticular layers
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What is present?
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Sebaceous gland (holocrine excretion)
and hair follicle (arrector pili muscle) |
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What cells present?
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Leukocytes-
neutrophils eosinophils basophils monocytes lymphocytes |
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What cell is here?
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It is a Granulocyte, a Neutrophil with polymorphonuclear leukocytes (PMN) or polys
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What cell is here?
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Eosinophil-bilobed nucleus, elongated crystalloid in large, specific granules
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What cell is here?
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Basophil
multilobed nucleus with 2-3 lobes prominent granules that stain deep violet or purple in electron appear as two separate nuclei, granules are filled with electron-dence material |
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What cell here?
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Lymphocyte
-usually small -nucleus is slightly indented and dark staining -basophilic but scanty, with cytoplasm forming a thin ring IN EM nucleus is round but can be indented slightly, small golgi, few mitrochondria and a large number of free ribosomes |
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What cell?
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Monocyte-
large cells nucleus is oval or horseshoe or kidney shaped -nucleus is pale staining (vesicular) -cytoplasm is abundant and has blue-grey fine granules like "ground glass" IN EM nucleus indented, the GOlgi is well developed and the cytoplasmic granules are electron dense and homogeneous |
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What cell?
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Platelets (thrombocytes)
-non-nucleated disc like cell fragments come off the megakaryocyte |
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What cell is this?
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Megakaryocyte
cell giant EM membrane-bound platelets may contain many cytoplasmic organelles like mitoch or fragments of Golgi apparatus. The most prominent organelles are the electron-dense granules |
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What structure is this?
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Red marrow section
-many nucleated cells of developing blood cell lines. |
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abundant fat cells between developing blood cells.
Large, thin-walled blood vessels called sinusoids present |
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What cells here?
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Basophilic Erythroblast
-cytoplasm strongly basophilic nucleus begins to condense and no nuclei -basophilia due to large number of ribosomes making hemoglobin Polychromatophilic erythroblast -Nucleus is smaller with more compact heterochromatic -cytoplasm is blue-grey or mottled cytoplasmic staining reflects a decrease in number of polyribosomes and an increase in the amount of hemoglobin Orthochromatic erythroblast (normoblast) -has small, pyknotic nucleus, the cytoplasm is acidophilic and nucleus will be extruded at this stage |
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During devel
1.) Nu lobated 2.) cell volume decreases and is filled with granules (specific to cell type neutrophilic, eosinophilic or basophilic metamyelocytes) Metamyelocyte -nu indented (horseshoe or kidney shaped) -specific granules dominate -band cells can form, which are immediate precursors of mature forms of 3 metamyelocytes |
