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3 Biology 1_2_07 Integument 1 Skin

3 Biology 1_2_07 Integument 1 Skin - The Integumentary...

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Unformatted text preview: The Integumentary System More Than Skin Deep TAKS TAKS Objective 2 The student will demonstrate an understanding of living systems and the environment. TEKS The student knows that, at all level of nature, living systems are found within other living systems, each with its own boundary and limits. The student is expected to: (A) interpret the functions of systems in organisms including circulatory, digestive, nervous, endocrine, reproductive, integumentary, skeletal, respiratory, muscular, excretory, and immune; (B)compare the interrelationships of organ systems to each other and to the body as a whole; Engage Are your fingerprints the same on your five fingers? Do any of your fingerprints have the same pattern as those of your Fingerprinting three classmates? Why is a fingerprint a good way to identify a person? Where else on your body might you have the kinds of skin patterns seen on your fingertips? What would happen if you were missing an organ? Would you consider skin to be an organ? Why or why not? Our skin can help identify who we are, but what are some other functions of our integument? Explore Human Epidermal Cells Lab MD Anderson Sun SAFETY Explain What is skin? What are the two layers of the skin? Which layer is on the top closest to the surface of the skin? What is the deepest layer of the skin called? Explain: What is the Integument? The outer most covering of the animal body. Largest organ of the body. Covers the entire visible surface of the body including the SKIN, as well as, hair, fingernails, and toenails What are the 2 layers of skin? Skin has 2 main layers Epidermis (outer layer) Dermis (inner layer) Two Layers of Skin Epidermis Layer of skin above the dermis. Part that sunburns, tans, wrinkles and freckles Epithelial cellsdead Squamous cells between epithelial and basal Contains Basal CellsBase of this layer Melanocytes make melanin that produces a tan, makes freckles and moles. Two Layers of Skin Dermis Deepest layer of skin Contains blood, lymphatic vessels, nerves, nerve endings, sweat glands, oil glands and hair follicles The Skin and Its Functions Protection for underlying tissues Sense organ Maintains a balance of chemicals in the body Regulates your body temperature to maintain homeostasis Hot sweat Cold shiver A. Basal Cells/ What are the parts? Melanocytes B. muscle C. sebaceous gland D. hair shaft E. epidermis F. dermis G. subcutaneous tissue H. fat I. arterial blood vessel J. sweat gland K. hair follicle Elaborate Burn Brochures ...
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