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29 Cards in this Set
- Front
- Back
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What are the 4 basic tissues?
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1. Epithelium
2. Connective 3. Muscular 4. Nervous |
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What does epithelium consist of?
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Sheets of aggregated cells of similar type
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What does the epithelium rest on?
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A basement membrane
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What can the basement membrane of epithelium be demonstrated with?
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PAS technique or silver salt staining
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What does epithelium cover?
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covers or lines the external and internal surfaces of the body
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In E/M, the basement membrane of epithelium consists of what?
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1. Lamina lucida (low density, clear area next to epithelium end)
2. Lamina densa (electron-dense, composed mainly of proteoglycans and a special type of collagen) 3. subbasal lamina (made of reticular fibers - connects lamina densa to subepithelial connective tissue) |
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What is epithelium classified by?
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1. Number of layers present
2. Shape of the cells |
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Where is simple squamous epithelium found?
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lining of blood vessels, pleural and periotneal cavities, pulmonary alveoli and glomerular capsule
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Where is simple cuboidal epithelium found?
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thyroid gland, collecting ducts of kidney
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Where is simple columnar epithelium found?
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stomach, intestine, gall bladder
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Where is the nucleus located in simple columnar epithelium?
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Near base of the cell
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Where is pseudostratified columnar epithelium found?
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trachea and bronchi (ciliated form)
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Where is stratified squamous epithelium found?
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Skin (keratinized form) and cornea (non-keratinized form)
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Where is stratified cuboidal epithelium found?
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Linging of excretory duct of glands
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Where is stratified columnar epithelium found?
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Parotid and mandibular gland ducts
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Where is transitional epithelium found?
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In hollow organs
exs. urinary bladdfer and urethra |
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What does a gland consist of?
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Glandular or secretory epithelium and duct system (parenchyma) with a supportive frame work of connective tissue (stroma)
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What are the classification of glands?
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1. unicellular or multicellular glands
2. endocrine or exocrine glands |
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Where are simple straight tubular glands found?
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large intestine
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Where are simple coiled tubular glands found?
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Sweat gland
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Where are simple branched tubular glands found?
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Stomach
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Where are simple alveolar glands found
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Sebacous gland
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Where are simple branched acinar glands found?
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Large sebacous gland
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Where are simple tubulo-acinar glands found
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Minor salivary gland of oral cavity
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What are the 3 types of secretory products?
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1. Serous
2. Mucous 3. Seromucous |
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What do serous glands produce?
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thin, watery secretion.
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What is an example of a serous gland?
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Parotid salivary gland
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Muscous gland cells stain...
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lightly with H&E because of mucin
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Where are seromucous glands found?
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In the mandibular salivary gland
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