Related Anatomy

Unit 3

The Integumentary System

Integumentary System

• Skin (epithelial tissue)

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• Accessory organs

Glands ( oil, sweat, mammory)

Hair

Nails

1. What are the 6 functions of skin?

• Protect- prevent bacteria- oil(sebaceous) acidic• Sensory receptors- touch, pain, heat, cold especially fingertips• Prevents dryness (waterproof /keratin)• Synthesis of Vitamin D- sunlight• Regulate temperature- shiver or sweat

(sudoriferous)• Sweat rids of excess water and some wastes

2&3 Name the 3 layers of the Integumentary System

• Epidermous (keratin)• Dermous• Subcutaneous or

Hypodermous

system consists of cutaneous membrane and accessory organs

4. Sweat Gland

• Sudoriferous• Maintain body

temperature• Rid fluid/waste

4. Oil Gland

• Sebaceous• Acidic/antibacterial• Lubricates hair/skin• Prevent water loss

5&6 Hair & Nails

• Function to PROTECT

• Shaft ( we see)• Root ( follicle)

7. Melanin

• Melanin- pigment to give skin color

• Melanoma- skin cancer

THE END