Know the Body, Bone by Bone

What Cross Section Holds

The site is organized into wings. Organ pages take one organ at a time. The body systems wing sweeps wider, one system per quiz. A bones wing works the skeleton, a terminology section deals in the roots and suffixes that medical words are built from, and a small fitness wing rounds things out. Each subject card below leads to one quiz on one subject, so you can go narrow or broad as suits the sitting.

Everything stays on the textbook side of anatomy: structures, names, counts, and word parts. Nothing on the site diagnoses, treats, or advises — that is not what it is for.

Two Authors, One Answer Key

Every answer on the site comes out of a single dataset built against a fixed catalog of 200 keys: a question catalog plus structured tables of terminology roots and suffixes, organ-to-system membership, all twelve cranial nerves, and body counts. Two authors filled the whole set in independently, without seeing each other’s work, and the two copies were then compared value by value. All 200 of 200 entries agreed. The rule behind that exercise is simple: where both authors cannot vouch for a value, no question is asked about it.

How a Round Works

Pick a card and the quiz loads in the page. Each question offers four options; choose one and it is marked right or wrong on the spot, with the correct answer shown either way. When the set is done you get a full review of every question, and your best score is kept in your browser for next time. There is no signup and nothing to download.