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The Integumentary System The Integumentary System

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The Integumentary System The Integumentary System Powered By Docstoc
					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
                       Fingerprinting
• Are your fingerprints the same on your five fingers?
• Do any of your fingerprints have the same pattern as those of your
    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 cells-dead
  – Squamous cells between epithelial and basal
  – Contains Basal Cells-Base 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
    What are the parts?
• A. Basal Cells/
        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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posted:11/17/2011
language:English
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