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Understanding the Integumentary System

Oct 16, 2024

Lecture Notes: The Skin (Integumentary System)

Introduction

  • Presenter: Dr. Mike
  • Topic: Overview of the skin, also known as the integumentary system.
  • Purpose: Understand the structure and roles of the skin.

Structure of the Skin

Layers of the Skin

  1. Epidermis:

    • The topmost, external layer visible to the eye.
    • "Epi" means "on top of".
  2. Dermis:

    • Layer beneath the epidermis.
  3. Hypodermis (Subcutaneous layer):

    • Layer beneath the dermis.
    • "Hypo" means "under".

Functions and Composition of the Epidermis

  • Cell Types in the Epidermis:
    • Predominantly made up of squamous cells.
    • Cells contain keratin, a protein that provides toughness and waterproof properties to the skin.

Conclusion

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Additional Notes

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  • Emphasis on the durable and waterproof nature of the skin due to its keratin content.