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** || The heart is the body’s most powerful muscle that sends your blood all around the body in one minute, shooting it where your body needs it most. The heart can never get tired and keeps going no matter what your doing. The heart is about as big as your fist and has two // main // pumps, the Atrium and the Ventricle. The right Atrium gathers all the fresh blood from your lungs filled with new oxygen and squeezes it into the right Ventricle where it is pumped out into the body’s muscles, tissue and organs. The left Atrium gathers all the old blood that has no oxygen left in it from all around the body and squeezes it into the left Ventricle. The left Ventricle than sends that old blood into the lungs where they are filled up with new oxygen.
 * **Explanation**
 * ** The Heart and Cardiovascular System

The heart pumps automatically, so you don't even have to think about it for it to beat. The brain sends a message to the heart every time it needs to change blood. The heart begins to go on overdrive when you get nervous or have been exercising, the reason for this is the body needs blood to get to the muscles as soon as possible especially when you need to move your muscles faster. ** || **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 ** ||