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BIO 180-5 s04 bb - VII Integumentary System VII...

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VII. Integumentary System
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VII. Integumentary System A. Introduction 1. Components a. Cutaneous Membrane - Epidermis - Dermis - Hypodermis
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VII. Integumentary System A. Introduction 1. Components b. Associated structures - Hair - Nails - Glands - Specialized receptors
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VII. Integumentary System A. Introduction 2. General Characteristics - Largest organ of body (16% of body weight) - Most exposed organ
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VII. Integumentary System B. General Function
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VII. Integumentary System B. General Function - Protection - Production - Regulation - Detection - Reservation - Indication
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C. Epidermis 1. General Characteristics - Consist of Stratified squamous keratinizing epithelium -Thickness of epidermis dependant on locality - 2 categories- thick skin, thin skin - Is composed of layers - Cells are continually growing more superficial
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C. Epidermis 2. Cell components a.Keratinocyte - most abundant cell type - keratinizes
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C. Epidermis 2. Cell components b. Melanocyte
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C. Epidermis 2. Cell components b. Melanocyte - involved with UV protection
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C. Epidermis 2. Cell components c. Langerhans cells - involved with Immunity d. Merkel’s cells - Involved with light touch sensation
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