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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Tissues |
Groups of cells that are similar in structure & perform relates function. |
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Primary Tissues |
Epithelial, Connective, Nervous, & Muscle |
4 basic tissues |
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Epithelial Tissue |
Sheet of cells that covers a body surface or lines a body cavity 2 forms: covering & lining, glandular Functions: protection, absorption, filtration, excretion, secretion, & sensory reception |
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Epithelium Special Characteristics |
1. Polarity- 2. Specialized contacts- tight junctions, desmosomes, adjacent cells 3. Supported by connective tissue- help resist stretching 4. Avascular but innervated- no blood vessels but supplied by nerve fibers 5. Regenerate- by cell division
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5 characteristics |
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Simple Epithelia |
Consists of a single cell layer Found: absorption, secretion, & filtration |
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Stratified Epithelia |
Composed of 2 or more cell layers stacked on each other Found: Skin surfaces, & lining of mouth |
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Simple Cuboidal (Epithelium) |
Consists single layers as tall as they are wide. Function: secretion & absorption Location: kidney tubules |
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Cuboidal Cells |
Box like, tall as they're wide |
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Columnar Cells |
Tall & column shaped |
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Squamous Cells |
Flattened & scale like |
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Simple Columnar (Epithelium) |
Single layer of tall closely packed cells aligned in rows Function: absorbs & secretes Location: digestive lining |
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Connective Tissue |
Most abundant & widely distributed Function: binding, insulate, reserve fuel, & transport substances * There are 4 main classes 1. Connective proper- fat, fibrous tissue of ligaments 2. Cartilage- 3. Bone 4. Blood |
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Extracellular Matrix |
Nonliving matrix which separates the living cells of the tissue |
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Pseudostratified Columnar (Epithelium) |
All cells rest at basement of membrane. Pseudo-- false, therefore it has a false impression of several layers. Function: Secrets/ absorbs |
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Stratified Epithelia |
Contains 2 or more cell layers, regenerate from below. *Durable Function: majorly for protection. |
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Stratified Squamous (Epithelium) |
Most widespread, several layers, & thick. Its surface cells are squamous & deeper cells are cuboidal or columnar. |
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