Image attribution & licenses

gasguide.app uses anatomically-correct medical illustrations sourced from professional, openly-licensed libraries — every clinical illustration on this site was authored by trained medical illustrators or sourced from peer-reviewed textbook editions. Decorative artwork in our video lectures (title cards, ambient backgrounds, non-anatomical scene illustrations) is generated locally with FLUX; these are clearly stylistic and never used for clinical reference.

OpenStax Anatomy & Physiology

CC BY 4.0

OpenStax Anatomy & Physiology 2e — openstax.org — used under CC BY 4.0.

https://openstax.org/books/anatomy-and-physiology-2e/ →

3D models

Interactive 3D anatomy uses Z-Anatomy (CC BY-SA 4.0) and BodyParts3D / Anatomography (© DBCLS, CC BY-SA 2.1 Japan) — both free, open-source, downloadable, and built from real anatomical reference data. Models derived from these sources are redistributed under their original share-alike terms.

About our illustrations: the anatomical figures credited above come from openly-licensed sources. Many of the concept diagrams and summary panels inside lectures are generated in-house with AI assistance and then human-reviewed for clinical accuracy. Image generators do not reliably know anatomy and can produce plausible-looking but clinically incorrect content, so every generated panel is checked against the lecture it illustrates before it ships, and panels that fail that review are pulled. If you spot an error in any figure, email support@gasguide.app and we will correct or remove it.

Clinical text content

Q-bank stems, lecture narrations, study guides, and module content are AI-drafted from anesthesia textbook concepts and published guidelines, then human-reviewed by a practicing CRNA. Where we paraphrase a specific source we cite it per item (e.g., references: ["Miller's Anesthesia 10e ch 12"]).

We don't reproduce copyrighted textbook text verbatim. The medical factswe describe (drug doses, anatomic relationships, MAC values, blueprint structures) aren't copyrightable; the specific expression in each cited source is. Every passage on this site is written in our own words, structured to teach rather than recap.

Suggested reading — the canonical references we point students to across the platform: Miller's Anesthesia (Elsevier); Stoelting's Pharmacology & Physiology in Anesthetic Practice (Wolters Kluwer); Barash Clinical Anesthesia (Wolters Kluwer); Nagelhout & Elisha, Nurse Anesthesia (Elsevier); Vargo Certification Review for the CRNA; AANA Practice Manual; ASRA guidelines; NBCRNA Candidate Handbook (publicly available at nbcrna.com).

If you believe a passage on this site improperly reproduces another work, email hello@gasguide.app with the URL + the source you're comparing against. We acknowledge within 24 hours and rewrite within 7 days.

Image attribution: if you believe an image on this site is misattributed or violates a license, email hello@gasguide.app.