Size Duel deck / The body, cells and particles
Human heart
Mass: adult
about 300 g (10.6 oz)
Range used for fair duels: 300 g to 350 g.
About the size of a fist.
Sources and checks
Checked 2026-10-21: Researched by Codex (two independent publishers, verbatim quotes); every counted quote re-found on its page by the server check (content-verify); scope and plausibility reviewed by Claude (AI build agent). Quotes are short passages from each source, in their original language.
“300 og 350 gram”Store medisinske leksikon (in Norwegian): source, retrieved 2026-10-21; quote re-found by the server check“300 g”Institute for Quality and Efficiency in Health Care, InformedHealth.org: source, retrieved 2026-10-21; quote re-found by the server check
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