T2+Explanation+Heart

L.I. To write an explanation with a growing understanding of the deeper features & surface features appropriate to genre **Explanation - Content/Ideas** === S.C. I have used diagrams/images to support my explanation. I can hear and see that all of my information relates to explaining how the heart works. === || **Features of an Explanation** ||
 * **Explanation**
 * ** The Heart and Cardiovascular System

How does the Heart and Cardiovascular System Work?

**The heart is the body a powerful muscle it never gets tired. It is about the size of your fist. it is made up out of two main pumps up the top of our heart is the atrium and at the bottom is the ventricle they have them on each side of your heart. It works by the brain sending a signal to the heart and one of the atrium full s up with dirty blood then it gets put in the ventricle then it gets sent to the lungs to get cleaned then it comes back to the heart where the clean blood gets put in the other atrium and then down to the ventricle and gets sent around your bodies to where you need it the most.

The cardiovascular system is a organ that carries acids, blood cells, and hormones to help your body fight diseases that may kill you and puts your body at the right temperature that your body needs to be at. There is three main parts the first one is the pulmonary circulation it is a portion of the cardiovascular system it carries blood away from the heart and to the lungs where it gets cleaned and goes back round the body. The second one is the Systemic circulation is the part of your cardiovascular system that carries oxygenated blood around the body and carries it back to the pulmonary circulation to get cleaned. It gets carried to the parts of the body where you need it the most. A last but not least the coronary circulation it provides a blood supply for the heart.



|| **Identify Purpose/Audience** Purpose is to explain how the cardiovascular system works Audience, people wanting to find out information about the cardiovascular system e.g student doing research

**<Heading**


 * 1) Statement or Question to be explained
 * How does the Heart & Cardiovascular System Work.


 * 1) Explanation arranged in sequence of steps
 * Heart = Muscle
 * 2 pumps atrium & ventricle
 * Brain sends a signal
 * Right ventricle = fresh blood to veins & arteries
 * Left ventricle = old blood, back to lungs for new oxygen
 * Heart pumps automatically
 * Heart rate increases with exercise or nervousness

**Time Connectives** First, Secondly, Then, Next, After that,

**Timeless present tense/Passive Voice** e.g. The heart pumps.. , Blood flows from .. , The brain sends..,

e.g. When exercising a persons heart rate increases ..
 * Exact details**

**Technical Terms Circulatory system, heart, ventricles, atrium, brain, blood, etc ** ||