--- title: The heart, blood and breathing — a lesson of Mova's school · trees and pragmatics description: «The heart, blood and breathing», a lesson of the world course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Every cell of your body needs oxygen to turn food into energy, and oxygen comes from the air. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [World](https://md.mova.elamur.ai/free/en/corpora/school/world/) / The heart, blood and breathing # The heart, blood and breathing Lesson 32 of the world course of Mova's primary school: 19 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/world/32-heart-blood-breathing/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/0/) — Every cell of your body needs oxygen to turn food into energy, and oxygen comes from the air. - [1](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/1/) — When you breathe in, air goes down your windpipe into two lungs, which are full of tiny air bags; there oxygen passes into the blood and carbon dioxide, a waste gas, passes out to be breathed away. - [2](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/2/) — The heart is a muscle about the size of your fist. - [3](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/3/) — It squeezes about 70 to 100 times a minute and pumps blood through tubes called blood vessels to every part of the body. - [4](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/4/) — Arteries carry blood away from the heart, veins bring it back, and tiny capillaries join them inside every part of the body. - [5](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/5/) — So blood is like a delivery service: it picks up oxygen in the lungs and food from the gut, drops them off at every cell, and carries the waste away. - [6](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/6/) — You can feel each squeeze of the heart as a pulse at your wrist or neck. - [7](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/7/) — All cells of the body need oxygen to get energy from food. - [8](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/8/) — In the lungs oxygen passes from the air into the blood; millions of tiny air bags give a huge surface for it to pass through. - [9](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/9/) — We breathe out carbon dioxide, a waste gas made by our cells. - [10](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/10/) — The heart is a muscle that pumps blood around the body. - [11](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/11/) — Arteries carry blood away from the heart and veins carry blood back to it. - [12](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/12/) — Capillaries are the tiniest blood vessels; they reach almost every cell. - [13](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/13/) — The pulse is the beat of the heart felt where an artery is near the skin. - [14](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/14/) — A child's heart beats about 70 to 100 times a minute at rest. - [15](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/15/) — When you run, your working muscles need more oxygen, so your heart beats faster and you breathe faster. - [16](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/16/) — Red blood cells carry oxygen; white blood cells fight germs. - [17](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/17/) — The diaphragm is a muscle under the lungs that helps us breathe in. - [18](https://md.mova.elamur.ai/free/en/corpora/school/world/32-heart-blood-breathing/18/) — Smoking damages the lungs and makes it harder for them to take in oxygen. - ← previous: [The skeleton and muscles](https://md.mova.elamur.ai/free/en/corpora/school/world/31-skeleton-and-muscles/) - next →: [Digestion: from mouth to intestines](https://md.mova.elamur.ai/free/en/corpora/school/world/33-digestion/) - ↑ back to [World](https://md.mova.elamur.ai/free/en/corpora/school/world/)