> For the complete documentation index, see [llms.txt](https://ss3d.gitbook.io/design/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ss3d.gitbook.io/design/entities/health/body-systems/organs/lungs.md). # Lungs

Pair of lungs chilling in space

Lungs are the organs interfacing between the atmospherics and circulatory systems. They intake gases, including oxygen, and transfer a part of it into the circulatory system. Lungs have a specific rate at which they do this intake. If the equilibrium between amount of oxygen needed by body parts and amount of oxygen available gets negative (e.g when too much blood is lost or when oxygen in air is low), then the intake rate may increase. Lungs are working independently from each other, meaning a human can survive with only one lung left, even though it will be able to intake only half the amount of oxygen it needs, and so will have to breath two times faster. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://ss3d.gitbook.io/design/entities/health/body-systems/organs/lungs.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.