Bio47S09HO02 - Biology 47 Hu man Anatomy Lecture 2...

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Biology 47 - Human Anatomy Lecture 2 Histology HISTOLOGY : histio = ; logos = Tissue : Collaborative group of specialized cells : 4 Primary Tissues : 1. Epithelial Tissue: Protective : 2. Connective Tissue: Specialized fluid connective tissues: 3. Muscular Tissue: 4. Nervous Tissue: Epithelial Tissue : Function: 1. Cover : Skin 2. Line : Oral Cavity ; Parietal Peritoneum 3. Produce : Sweat, mucus, digestive Characteristics : 1. Cellularity : • Composed almost entirely of : Little : 2. Polarity : Tissue has a definite : Apical Surface : Exposed to : Free Surface
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Basal Surface : Attached to : Bound Surface 3. Attachment : Cells secured to underlying tissue: 2 part membrane Produced by : 4. Avascular : a = “without” • Blood vessels DO NOT : Nutrients supplied from : • Dependant upon : 5. Regeneration : High rate of : • Cells experience a high degree of : Physical : Skin ~2 wks Chemical : Stomach Lining 2-3days • Replacement accomplished by resident : Develop into : Functions : 1. Physical Protection : External & internal : Abrasion : Protect underlying tissue Dehydration : Tight Junctions : Water resistant protein: : Tight Junctions : Impede entrance of : 2. Control Permeability : Tight Junctions : Prevent unregulated : Regulate molecular :
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3. Provide Sensations : • 1 st tissue in contact w/ Highly
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This note was uploaded on 01/16/2012 for the course BI 200 taught by Professor Potter during the Fall '11 term at Montgomery College.

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Bio47S09HO02 - Biology 47 Hu man Anatomy Lecture 2...

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