Download activities unit 4: the circulatory and excretory systems

ACTIVITIES UNIT 4: THE CIRCULATORY AND EXCRETORY SYSTEMS.1.
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What colour are erythrocytes?
What colour are leukocytes?
What is another name for trombocytes?
Write two functions of blood.
Match the types of blood vessel to the definitions:
a) Arteries
1. Branch out from arterioles
b) Capillaries
2. Take blood back to the heart
c) Veins
3. Carry the blood away from the heart
6. What is haemoglobin? What is its function?
7. Write the plural of the following words: artery, capillary, vein, arteriole.
8. Complete thee sentences with the correct comparative or superlative form of the
adjective in brackets:
a) Arterioles are
than arteries (narrow)
b) The
arteries are elastic (large)
c) Veins are
than venules (thick)
d) The walls of veins are
than artery walls (thin)
e) Capillaries are the
blood vessel (small)
9. Copy and complete the table with the parts of the body: kidney, lung, neck,
stomach.
Artery
Part of the body
Gastric
Pulmonary
Renal
Carotid
10. Read the definitions and write the word for each definition:
a) The valve between the ventricle and atrium
b) The valve between the right atrium and the ventricle
c) The valve between the left atrium and the ventricle
d) The upper chamber of the heart
e) The lower chamber of the heart
11. Copy and complete the table with the following words: aorta, bicuspid,
pulmonary artery, pulmonary veins, tricuspid, venae cavae.
Right
Left
12. Put the following parts in order to show the blood flow in a heartbeat: ventricles,
veins, arteries, atria.
13. Complete the sentences with the correct word (aorta, heart, left, right)
a) The pulmonary artery leads away from the
b) In pulmonary circulation the blood flow starts from the ----------------ventricle
c) In systemic circulation, the blood flows along the
d) In systemic circulation, the blood flow starts from the
----------------ventricle
14. What type of blood (oxygenated or deoxygenated) flows through the pulmonary
veins? And through the aorta?
15. What is the function of the sigmoid valves? Where are they found?
16. Is venous blood the same as oxygenated blood?
17. Is arterial blood the same as deoxygenated blood?
18. How is the blood different in each example below?
a) The blood in a renal artery and the blood in a renal vein.
b) The blood inside the right ventricle and the blood inside the left ventricle
19. Write where the following vessels begin and end:
a) Vena cava
b) Pulmonary vein
c) Pulmonary artery
d) Aorta
20. Match the organs and systems to their functions:
a) Respiratory system
b) Sweat glands
c) Liver
d) Urinary system
1) Eliminates products produced by the breakdown of haemoglobin.
2) Removes carbon dioxide from the blood and expels it.
3) Eliminates excretory products in the form of urine.
4) They produce sweat which evaporates to cool the skin.
21. What is the urinary system made up of?
22. What other organs and systems help the kidneys with their excretory function?
23. The functional and structural unit of the kidney is called the nephrons. What
exactly happens in the nephrons?