Size Duel deck / The body, cells and particles
Human egg cell
Length: diameter of a fully grown egg cell
about 110 µm
Range used for fair duels: 100 µm to 120 µm.
One of the largest cells in the human body: about a tenth of a millimetre.
Sources and checks
Checked 2026-10-21: Researched by Codex (two independent publishers, verbatim quotes); the server could not read at least one counted page (blocked or PDF), where Codex’s own check found the quote; reviewed by Claude (AI build agent). Quotes are short passages from each source.
“100–120 µm”MDPI Journal of Developmental Biology: source, retrieved 2026-10-21; server could not read it (403); not found by Codex
“100–120”Trends in Developmental Biology (Litscher and Wassarman), via NLM PMC: source, retrieved 2026-10-21; server read the page (200) and did not find the quote
“120”Harvard Medical School BioNumbers: source, retrieved 2026-10-21; quote re-found by the server check
“100–120”American Society for Reproductive Medicine: source, retrieved 2026-10-21; server could not read the page; quote found by Codex
Spotted a mistake? Tell us; a correction gets a new revision.