integumentary system bio

integumentary system bio - The Integumentary System

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6/6/11 The Integumentary System http://www.faqs.org/health/Body-by-Design-V1/ 1. Use the above website as our chapter on the Integumentary System. 1. What is this individual holding? 1. Is the “integument” an “organ” or a “system”?
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6/6/11 The “Integument” is the “bark” of the body There are three systems to thank for you superficial appearance, shape, and movement. Together, these are The Integumentary System The Skeletal System The Muscular System
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6/6/11 All animals have a covering or integument The integument provides: Insulation Protects from dehydration Protects the organism from invasion by disease organisms Uses the sun to produce Vitamin D (in some cases) Homeostatic device (temperature regulation/excretion) Derivatives – scales, feathers, hair,
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6/6/11 The Skin: Is the largest organ in the body – weighing in at ~9-10 lbs or ~16% of body weight. Covers ~15-20 sq feet Derived from ectoderm – recall ectoderm is one of the embryonic germ layers Has two distinct regions – epidermis and dermis. Do not confuse
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6/6/11 Functions: No garment ever made can Reforms after shrinking Doesn’t change shape after thousands of washings Is waterproof, but holds in moisture Kills bacteria on contact
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integumentary system bio - The Integumentary System

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