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Skin A&P

Kristall Fears

Created on September 12, 2023

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Transcript

The Skin

Skin only makes up part of the Integumentary system. Click each to learn more about each part of the skin.

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the science of skin

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Layers of the skin

Epidermis

  • Top layer of skin
    • Made up of epithelial cells
    • Made up of 5 thin layers
    • The top layer is made up of dead skin cells that shed every 2 weeks
    • The bottom layer of the epidermis (stratum basale) divides and pushes already formed cells into higher layers

Quiz yourself!

Read

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Test your knowledge on the functions of the cells found in the epidermis.

Cells of the Epidermis

start

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Good job!

START OVER?

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Layers of the skin

Dermis

  • 2nd layer of skin
    • Contains elastic, connective tissue that is primarily made of collagen
    • Tough and resistant to force
    • This is where hair, glands, immune cells, and blood vessels are located

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Layers of the skin

Hypodermis (Subcutaneous tissue)

  • 3rd layer of skin
    • Dense connective tissue
    • Varying amounts of adipose tissue
    • Contains major blood vessels, lympatics, and nerves

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Functions of the Skin

Protection & Immunity

Temperature Regulation

Psychosocial

Sensation

Vitamin D Production

Absorption & Elimination

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Layers of the skin

Cutaneous Vascular System

  • Predominantely a capillary system
  • Low pressure exerted in blood vessels
  • Very vulnerable

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Changes to the Skin with Aging

As we age there are normal changes to our skin. Click on each button to learn more.

Watch

Watch this video about the skin!

The skin is the first line defense of the body, protecting the underlying structures from invasion of microoragnisms. Click to see other facts about the skin!

As we age, skin becomes more dry and itching may occur.

Subcutaneous and dermal tissue become thin -Skin is more easily injured -Less capacity to insulate -Wrinkles more easily -Sensation is reduced ​