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.
Servier Medical Art (SMART)
CC BY 3.0Smart Servier Medical Art — smart.servier.com — used under CC BY 3.0 Unported.
https://smart.servier.com →OpenStax Anatomy & Physiology
CC BY 4.0OpenStax Anatomy & Physiology 2e — openstax.org — used under CC BY 4.0.
https://openstax.org/books/anatomy-and-physiology-2e/ →Wikimedia Commons
Public DomainWikimedia Commons — predominantly public-domain Gray's Anatomy plates (1858); supplementary CC-BY-SA images credited individually.
https://commons.wikimedia.org →NIAID BioArt Source
Public DomainNIAID BioArt — bioart.niaid.nih.gov — public domain.
https://bioart.niaid.nih.gov →3D models
Interactive 3D anatomy uses Z-Anatomy (CC BY-SA 4.0) and BodyParts3D / Anatomography (CC BY-SA 2.1) — both free, open-source, downloadable, and built from real anatomical reference data.
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.
Canonical references we cite 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.