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title: Snap! Breaking a bone — a lesson of Mova's school · trees and pragmatics
description: «Snap! Breaking a bone», a lesson of the medicine course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Bones are hard and strong, but a big force at a bad angle, like landing on your hand when you fall off the climbing frame, can crack or snap one.
---

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# Snap! Breaking a bone

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Lesson 1 of the medicine course of Mova's primary school: 18 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/medicine/1-snap-breaking-a-bone/).

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- [0](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/0/) — Bones are hard and strong, but a big force at a bad angle, like landing on your hand when you fall off the climbing frame, can crack or snap one.
- [1](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/1/) — Children's bones are bendier than grown-ups', so they often break like a green twig: bent on one side and cracked on the other.
- [2](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/2/) — You cannot always tell a break by wiggling it, and you do not always hear a crack; only an X-ray shows the bone for sure.
- [3](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/3/) — Bones heal in whatever position they are held in, so doctors line the pieces up and hold them still for weeks while new bone grows.
- [4](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/4/) — If you think a bone is broken: keep it still, tell a grown-up at once, and stop playing.
- [5](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/5/) — A child's bone often breaks like a green twig, bending on one side and cracking on the other; this is called a greenstick fracture.
- [6](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/6/) — Keeping a broken arm still stops the broken ends moving, which hurts and can do more damage.
- [7](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/7/) — At A&E, the hospital's emergency department, a triage nurse checks everyone on arrival and the sickest go first, so a long wait means your injury is not the most dangerous one there.
- [8](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/8/) — X-rays pass through skin and muscle but are stopped by bone, so bones show white and a crack shows as a dark line.
- [9](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/9/) — One X-ray gives a tiny dose, about the same as a few days of natural background radiation; the radiographer who takes X-rays steps behind a screen because they take hundreds a day and the tiny doses would add up.
- [10](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/10/) — If the broken ends have slid out of place, the doctor gives strong pain relief and pulls the bone back into line; this is called reducing a fracture.
- [11](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/11/) — Breaks in many pieces or near a joint may need an operation with pins, plates or screws, done under anaesthetic (medicine that puts you to sleep so you feel nothing); the metal does not make you magnetic.
- [12](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/12/) — Many breaks are silent, and a loud crack does not always mean a break.
- [13](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/13/) — Shock and bad pain can make you faint for a moment; lying down with the legs raised helps the blood get back to the head.
- [14](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/14/) — Growth plates near the ends of children's long bones make new bone; most growth plate breaks heal completely, and doctors often check them again later.
- [15](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/15/) — Bone heals in stages, a blood clot, then soft new bone called a callus that slowly hardens, which takes several weeks even in children.
- [16](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/16/) — A small child who suddenly will not walk on a leg should be checked by a doctor, even after a small fall.
- [17](https://md.mova.elamur.ai/free/en/corpora/school/medicine/1-snap-breaking-a-bone/17/) — After a fall from a height the neck or back may be hurt, so the person is kept still and 999 is called.

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