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Introduction to Human Physiology
What human physiology is - and why it matters.
Human Physiology
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The Nervous System
The system governing sensation and neural communications.
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The Endocrine System
The system that governs all hormonal activity.
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The Cardiovascular System
Your body's way of getting oxygen to where it's needed.
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The Respiratory System
The system built around the exchange of gases.
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The Digestive System
The collection of organs dedicated to breaking down food and extracting energy.
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The Urinary System
How your body disposes of liquid waste.
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The Reproductive System
How our bodies produce new bodies.
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The Musculoskeletal System
The interlinked system of muscles and skeletons that holds us all together.
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The Integumentary System
Skin, hair, nails, and the crucial role they play.