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21 Cards in this Set
- Front
- Back
Epithelial tissue |
Covers body surfaces and lines hollow organs, body cavities, ducts, and forms glands |
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Connective tissue |
Protects, supports, and binds organs. Stores energy as fat, provides immunity. |
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Muscular tissue |
Generates the physical force needed to make body structures move and generate body heat |
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Nervous tissues |
Detect changes in body and responds by generating nerve impulses |
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Tight junctions |
Fuses and seals. Prevents leakage. Found in stomach, intestines, and bladder. |
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Adherens junctions |
Made up of a dense layer of proteins called plaque. Connects microfilaments of 2 cells. |
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Desmosomes |
It connects intermediate filaments of 2 cells. Prevents separation. Located in epidermis and heart. |
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Hemidesmosomes |
Anchors cells to the basement membrane. Locations in muscle, nerve, blood vessel |
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Gap junctions |
Connect side by side cells via tiny fluid filled tunnels called connexons. It is 2 way traveling. |
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3 major functions of epithelial tissue |
Protection, secretions, movement |
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Apical (free) surface |
Faces the body surface, body cavity, lumen, or duct |
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Basal surface |
Opposite of apical layer and adhere to basement membrane |
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Is epithelial tissue vascular or avascular? Innervated or noninnervated? |
Avascular and Innervated |
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Squamous cell functions |
Rapid passage of substances |
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Cuboidal cell functions |
Secretion and absorption |
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Columnar cell functions |
Secretion and absorption |
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Transitional cell functions |
Change shape from flat to cuboidal |
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Simple squamous epithelium |
Single layer of cells. Founds at sites for filtration or diffusion. Ex: Lung tissue |
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Simple cubodial epithelium |
Found in thyroid gland and kidneys. Functions in secretion and absorption. |
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Simple columnar epithelium |
Nonciliated and ciliated |
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Psuedostratified columnar epithelium |
Appears to have several layers. |