1) I can label a diagram of my heart (A) 2) I can describe how my blood is transported from my heart to my cells and back again (M) Finished? Try and estimate how many times your heart will beat if you live to be 80 years old… Tāite, 17 Mahuru 2015 Do now: Write today’s date and copy today’s learning / kaupapa:

Do now: Your heart beats, on average, 70 times per minute 1)How many time does it beat per hour? 70 x 60 = 4,200 beats 2)How many times does it beat per day? 4,200 x 24 = 100,800 beats 3)How many times does it beat per year? 100,800 x 365 = 36,792,000 beats 4)Humans live on average for 80 years: how many times will your heart beat? 36,792,000 x 80 = BILLION beats!!! Tāite, 17 Mahuru 2015

Will beat nearly 3 billion times in a lifetime Will pump over 200 million litres of blood That’s 200 full-size Olympic swimming pools! Your blood vessels would stretch around the world twice But it only takes your heart 20 seconds to pump blood to every cell in your body... and yet your heart is smaller than your fist...

Videos: 1)The Circulatory Rap – then diagram 2)Bill Nye – then heart structure

Watch the rap song again... and then: 1)draw a diagram that shows what the circulatory system does 2)your diagram must include the following words: heart lungs veinsarteries cells oxygencarbon dioxide

Did you know? There is one muscle in your body that is vital for your survival... The heart is an involuntary muscle. This means it works on its own without us having to think about making it beat. your heart!

Heart Jigsaw:

The heart has four different hollow areas called chambers There are two chambers on each side of the heart The heart is actually two pumps in one: The right side receives blood from the body and pumps it to the lungs to get oxygen The left side receives the oxygenated blood from the lungs and pumps it around the body

Watch the rap song again... and then: 1)write down what the circulatory system does 2)your answer must include the following words: heart lungs veinsarteries cells oxygencarbon dioxide

Merit Answer: 1.The heart pumps blood in arteries, carrying oxygen and nutrients to our cells to keep us alive 2.The heart pumps blood carrying carbon dioxide in veins away from these cells back to the lungs to get rid of the CO 2 and get fresh O 2

1)The circulatory system pumps blood carrying oxygen and nutrients around the body 2)The heart receives blood from the lungs with fresh oxygen 3)The heart then pumps this blood out of its arteries to deliver oxygen and nutrients to all the body’s cells 4)The cells convert the oxygen and nutrients in to energy via respiration, but produces carbon dioxide as a waste-product 5)This “de-oxygenated” blood is returned to the lungs by veins, and the lungs then “re-oxygenate” the blood for another cycle Excellence Answer:

FIRST deoxygenated blood is returned to the heart from the body in the large vein called the VENA CAVA The blood arrives into the RIGHT ATRIUM before passing through the TRICUSPID VALVE into the RIGHT VENTRICLE In order for the deoxygenated blood to get oxygen it needs to travel to the LUNGS. It is carried in the PULMONARY ARTERY The PULMONORY VEIN carries blood from the LUNGS back to the LEFT ATRIUM of the HEART From the ATRIUM the oxygenated blood goes through the BICUSPID VALVE to the LEFT VENTRICLE The wall of the LEFT VENTRICLE is thick and muscular as it has to pump the oxygenated blood out into the AORTA The AORTA is the main artery in the body and it carries blood out to the ORGANS and TISSUES of the body When the oxygen has been used from the blood in the cells, carbon dioxide and waste products are returned to the blood. This generally happens in the CAPILLARIES The blue blood is then collected from the capillaries and passes into the thin walled VEINS around the body

Answer these TRUE or FALSE questions in your books: 1)Blood vessels that carry blood into the heart are called arteries 2)The heart is a muscle 3)Veins carry “oxygenated” blood 4)Human cells convert CO 2 into energy and produce O 2 as a by-product FALSE – Arteries Away from the heart TRUE FALSE – why? FALSE – other way around Tāite, 17 Mahuru 2015 Do now: