THE RESPIRATORY SYSTEM MAP — CLICK ANY NODE TO EXPLORE
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Select a Node
Click any organ or structure on the map to learn about its role — plus a fun fact you won't forget!
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The Respiratory System
🔬 Role in the Respiratory System
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Connected System
Circulatory System
Pulmonary circulation carries deoxygenated blood to the lungs to load O2 and dump CO2, then returns oxygen-rich blood to the heart for distribution throughout the entire body.
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Connected System
Immune System
The respiratory tract is heavily defended — cilia, mucus, and alveolar macrophages work together to trap and destroy pathogens before they cause infection deeper in the body.
20,000Breaths per day
480MAlveoli in your lungs
6 LAir in one deep breath
Tennis courtAlveoli surface area
3Systems it connects to
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Connection Quiz
Toggle each system pill above and click nodes on the map — all 5 questions come from the connected system cards and node information.
Progress0 of 5 answered
Circulatory Connection
The Circulatory connection describes pulmonary circulation. What happens to blood on this specific loop — what goes in to the lungs and what comes back out?
Immune Connection
The Immune connection lists three specific defenses that protect the respiratory tract from pathogens. What are they?
Alveoli Node
The Alveoli node explains what makes these tiny air sacs so effective at gas exchange. What structural feature enables O2 and CO2 to cross between air and blood?
Diaphragm Node
The Diaphragm node explains the mechanical process of inhalation. What happens to the diaphragm when you breathe in?
Nose & Nasal Cavity Node
The Nose & Nasal Cavity node lists three things the nasal cavity does to incoming air before it reaches the lungs. What are they?
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Report Card
Answer all 5 questions to unlock your report card.