The Integumentary System

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Integumentary System.  Composed of skin, hair, sweat glands, and nails  The name is derived from the Latin integumentum, which means “a covering.” 

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Presentation transcript:

The Integumentary System Standard: Explain the purpose of the human body’s major organ systems

What is the integumentary system? The natural outer covering of an organism For humans, this includes the skin, hair, and nails, sweat glands

What is the skin? The largest and heaviest organ in the human body Protects, nourishes, insulates , and cushions the human body Composed of two primary layers

What are the layers that make up skin? Epidermis (outer/surface layer of skin) Dermis (contains hair roots, sweat glands)

What are the functions of the skin? Protect the human body (First layer of defense) Sensory response Formation of vitamin D Regulation of body temperature (homeostasis) Excretion of waste

Review Questions for Quiz (Friday) Complete the following questions with complete sentences or questions/answers: Page 505, Visualizing Main Ideas Page 500, #2-3 Page 506-507, #1-8, 10-13, 15-18 Total 18 Questions.