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Human Biology & Anatomy

How the body is built and how it works — from cells and tissues to the organ systems that keep you alive, and how they all connect.

8 lessons·~2h·⭐ 1,345 XP·🏆 Certificate on completion
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Module 1 — How the Body Is Organized

From atoms to organism — the building blocks of the body.

  1. 1
    From Atoms to You
    The levels of biological organization
    14 min
    ⭐ 165
  2. 2
    The Four Tissue Types
    The materials every organ is built from
    14 min
    ⭐ 165
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Module 2 — Staying in Balance

Homeostasis — the constant balancing act that keeps you alive.

  1. 1
    Homeostasis: The Body's Balancing Act
    Set points and feedback loops
    15 min
    ⭐ 170
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Module 3 — A Tour of the Organ Systems

The 11 systems, grouped by what they do for you.

  1. 1
    Systems That Move & Protect You
    Skeletal, muscular, and skin
    14 min
    ⭐ 165
  2. 2
    Systems That Fuel You
    Digestive, respiratory, cardiovascular
    15 min
    ⭐ 170
  3. 3
    Systems That Control You
    Nervous and endocrine
    15 min
    ⭐ 170
  4. 4
    Systems That Defend & Maintain You
    Immune/lymphatic and urinary
    14 min
    ⭐ 165
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Module 4 — It All Connects

How the systems stop being a list and work as one body.

  1. 1
    How It All Works Together
    The body as one integrated whole
    16 min
    ⭐ 175