Cardiac Codex
CARDIAC CODEX / IMAGE CREDITS

Image credits & licences

Most illustrations in Cardiac Codex are our own. Where we build on someone else's openly licensed work, they are credited here — author, licence, and a link to the original.

UPDATED 2026-07-25 · 1 SOURCED IMAGE

Cardiac Codex lesson artwork comes from three places: diagrams we draw ourselves in code, images we generate ourselves, and — occasionally — an openly licensed illustration from someone else that we relabel for exam use. Only that third category needs crediting, and every instance of it is listed below.

Sourced illustrations

AuthorLicenceSourceHow it is used & credited
Mcstrother Creative Commons Attribution 3.0 Unported (CC BY 3.0) Original file "Lower-limb arterial anatomy after Mcstrother, CC BY 3.0, via Wikimedia Commons — modified (labels removed and replaced)"
What we do and don't use. We only build on work released under CC0 / public domain or CC BY. We do not use CC BY-SA, CC BY-NC, or CC BY-ND material, because adding our own labels creates a derivative and Cardiac Codex is a commercial product. Where a source image carried its own labels, those labels were removed and replaced with our own; the underlying artwork is the original author's and the licence above is theirs.
Spotted a problem with a credit? If you are an author listed here and something is wrong — the attribution, the licence, or the way your work has been modified — email [email protected] with the subject line [IMAGE CREDIT] Correction request (the link fills it in for you) and we will correct or remove it.
Cardiac Codex is an independent study tool published by MdoubleA LLC, not affiliated with or endorsed by CCI or any certifying body. Licence names above are recorded as stated on each source file's own page; the linked original is always authoritative.