Histology And The Integument Flashcards Preview

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Flashcards in Histology And The Integument Deck (16):
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Dermis

A layer of dense irregular connective tissue lying deep to the epidermis

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Epidermis

The superficial thinner layer of skin composed of keratinized Stratified squamous epithelium

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Hypodermis

The inner most thickest layer of the skin and acts as an energy reserve

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Keratin

An insoluble protein found in the hair, nails, and other keratinized tissues of the epidermis

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Tissue

A group of similar cells and their intercellular substance joined together to perform a specific function and orgin

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Epithelial tissue

Covers body surfaces ; lines body cavities, hollow organs and ducts

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Connective tissue

Protects and supports the body and it's organs, binds organs together, stores energy reserves as fat and provides immunity

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Muscle tissue

Generates physical force needed to make body structures move

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Nervous tissue

Directs changes inside and outside the body and initiates and transmits nerve impulses that coordinate body activities to help maintain homeostasis

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Basal surface

Touches tissue

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Apical

Doesn't touch tissue

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Two basic types of epithelia based on number of layers of cell define simple

One single layer of cells that function in diffusion osmosis filtaration secretion and absorption

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Two basic types of epithelia based on number of layers of cell define stratified

More than one layer of cells that protects underlying tissues secretions and absorption

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Squamous epithelia

FLAT thin allows rapid passages of substances through them

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Cuboidal epithelia

Cube like functions in secretion or absorption

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Columnar epithelial

Column like protect underlying tissue secretion and absorption