3990 Learning at home workbook 6 ebook
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
The Human Body ~ Activity 4<br />
Our Circul<strong>at</strong>ory System<br />
Complete these words to this passage, which describes the circul<strong>at</strong>ory system in our body, by using the words below.<br />
The c<br />
c<br />
intestines oxygen pump disposed circul<strong>at</strong>ion gases lungs organ valves cells<br />
(1)<br />
of the blood can be compared to the transport<strong>at</strong>ion system of a large city. The individual<br />
(2) (3)<br />
of the body are the people to whom the blood brings food, o<br />
and other necessities. It also carts away the waste products to be d<br />
i<br />
blood collects oxygen and discharges carbon dioxide and other waste g<br />
p<br />
intestines. The heart is a pear-shaped o<br />
v<br />
(4)<br />
of. Food is digested in the<br />
, (5) where the blood absorbs it and carries it to the cells. In the l<br />
, (6) the<br />
(7)<br />
. The heart acts as a<br />
(8)<br />
sending the enriched blood out through the body, as well as sending depleted blood to the lungs and<br />
blood from the lungs and directs it all over the body.<br />
(9)<br />
slightly bigger than your fist. It has four chambers separ<strong>at</strong>ed by<br />
(10)<br />
. It receives depleted blood from the veins and directs it to the lungs. It also receives enriched<br />
Veins carry depleted blood to the heart (to the heart). Arteries carry enriched blood to the body (away from the heart).<br />
Can you think of a way to remember the difference between veins and arteries?<br />
Using this diagram of the heart:<br />
(a)<br />
(b)<br />
(c)<br />
(d)<br />
colour blue the half of the heart which has depleted blood coming in and out.<br />
colour red the half of the heart which has enriched blood coming in and out.<br />
draw arrows to show the direction of the blood in the heart.<br />
label the valves.<br />
Find the answers to this circul<strong>at</strong>ion puzzle.<br />
Down<br />
2. Carry enriched blood to the body<br />
3. Describes the way our blood goes around our body and<br />
returns to the heart<br />
4. The smallest components of our body<br />
6. A mixture of liquids which provides our cells with<br />
wh<strong>at</strong> they need to stay alive<br />
7. Digests our food and enriches the blood with nutrients<br />
Across<br />
1. Control the flow of blood in our heart<br />
5. Our body’s blood pump<br />
8. Enriches the blood with oxygen and removes any waste gases<br />
9. One pumping motion from our heart<br />
10. Carry depleted blood to the heart<br />
© R.I.C. Public<strong>at</strong>ions<br />
Low resolution display copy only<br />
Challenge: If our adult heart be<strong>at</strong>s <strong>at</strong> about 70 times/minute, about how many be<strong>at</strong>s will it do in one day and in a leap year?<br />
R.I.C. Public<strong>at</strong>ions® www.ricpublic<strong>at</strong>ions.com.au 29 ISBN 978-1-922313-88-1 <strong>Learning</strong> <strong>at</strong> <strong>home</strong> <strong>workbook</strong> 6
Change language