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8.4 Body Systems
VOCABULARY
Rewrite the following words in the column given and write their meanings
using dictionary.
Word
Rewrite the word here
Meaning
artery
vein
capillary
atrium
ventricle
aorta
plasma
platelets
haemoglobin
bone marrow
fibrin
clot
pacemaker
cardiac muscle
trachea
pulmonary
bronchi
alveoli
bronchioles
bones
muscles
ligaments
tendons
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TERM3/WEEK3
1. What are the three main parts of the circulatory system?
____________________, __________________, ________________________
2. Name the four chambers of the heart.
________________, __________________, _________________, ______________
3. What is the lub-dub sound we hear when listening to the heart?
_________________________________________________________________
4. What are the five functions of the human circulatory system.
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
5. What chamber of the heart pumps oxygen rich blood?_________________________
6. What is the job of the circulatory system?
_____________________________________________________________________
7. Select the best alternative in these multiple choice questions.
i) The heart is a double pump. It pumps blood to two different places at the same time.
These places are
(A) the head and the body
(B) the body and the lungs
(C) the right side and left side of the body
(D) the body and the kidneys
ii) The major risk factors in coronary heart disease are
(A) having lots of glucose in your food and blood
(B) having lazy kidneys
(C) smoking, diet and lack of exercise
(D) playing sport and eating fruit
iii) When resting, a person breathes 12 times per minute and exchanges 500 mL of air each
breath. How much air is breathed each minute?
(A) 6 litres
(B) 6000 litres
(C) 42 litres
(D) 512 litres
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TERM3/WEEK4
1. Name the three types of blood vessels.___________, ____________, _______________
2. What two things help the blood in veins return to the heart?___________, _________
3. What does the two numbers record while measuring blood pressure represent? For
instance, a healthy young adult might have a blood pressure of 120 over 80.
__________________________________________________________________
4. How much blood is contained in an average adult? _____________________________
5. What are the four components of blood?__________, _________, __________, ______
6. What does the haemoglobin in red blood cells do to help the circulatory system?
_______________________________________________________________________
_______________________________________________________________________
7. Complete these sentences by writing in the missing word.
a. Muscles with stripes on them that are under the control of our will are said to be _______
b. Your friend has been admitted to the cardiac ward of the hospital for treatment to her ___
8. Label all the parts of a Human Heart
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TERM3/WEEK5
1. Label all the parts of a respiratory system:
2. Write the sequence of steps in breathing in and out.
3. Draw a bar chart and a pie chart to show the composition of exhaled and inhaled air.
Gas in air
Inhaled air(% composition) Exhaled air (% )
Nitrogen
78
78
Oxygen
21
16
Others
1
1
Carbon dioxide
0.03
4
Water vapour
0
1
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TERM3/WEEK6
1). Select the best alternative in these multiple choice questions.
1. The greatest cause of diseases in the lungs is due to
(A) breathing through your mouth and not your nose
(B) smoking cigarettes
(C) breathing pollution in cities
(D) hardening of the arteries
2. Asthma is a condition in which the sufferer
(A) has diseased lungs
(B) has a poor circulation of blood
(C) cannot play sport
(D) has their airways close up, making it hard to breathe
3. When resting, a person breathes 12 times per minute and exchanges 500 mL of air each breath.
How much air is breathed each minute
(A)
6 litres
(B) 6000 litres (C)
42 litres
(D) 512 litres
4. What body structure protects the lungs from outside harm?
A. Cartilage
C. The rib cage
B. Tiny sacs
D. The diaphragm
2. Many organs inside us, like our lungs and intestine, have a very large surface area. This is
to increase the speed of absorption through the semi-permeable membrane. The incomplete
table below shows the surface area of some internal organs. Compare these areas with the 2
m2 surface area of our skin. Complete the table.
ORGAN
What is
absorbed
Intestines
Lungs
Kidneys
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Effective
area
Name of structure or cells where absorption or
exchange occurs
250 m2
90 m2
12 m2
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TERM3/WEEK7
1. What would happen if humans didn't have bones? ___________________________
2. How many bones do humans have? _______________________________________
3. How do my bones move? ________________________________________________
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TERM3/WEEK8
1. What's bone marrow? _________________________________________________
2.
Do all critters have a backbone? ________________________________________
3. Use the words in the box to fill in the blanks.
protect
skeleton
skeletal
jellyfish
blood
ribcage
cranium
marrow
shape
tendon
ligaments
move
bones
minerals
There are around 206 ________________ in the adult human body. These bones plus the
connecting tissue make up the _______________ system.
The skeletal system is very important for many reasons. Some bones help _____________ our
organs. The _____________, for example, protects our brains and the ________________
protects our lungs.
The skeletal system also gives us our _______________. Without a ______________, we
would be shapeless blobs like a ______________ or an earthworm. Our bones, which are
connected by ______________, provide a frame for the rest of the organs, giving us our
unique body shape.
The skeletal system also helps us ______________. Muscles, which are attached to bones by
_______________, cause the bones to move, which makes our bodies move.
Bones also help your body store ________________ such as calcium. If there is too much
calcium in the blood, some of it becomes bone. If there is not enough calcium, then the bones
give some to the blood.
Finally, another important function of bones is to produce ________________. Inside bones
there is a soft substance called ________________, which is used to make blood cells.
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TERM3/WEEK9
The Skeleton System -- Crossword
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Across
Down
1. The upper arm bone.
2. The bone on your jaw.
6. Something that joins muscles to bone.
3. One of the forearm bones.
9. The collection of bones that run down your
back.
4. Something that joins bone to bone.
11. One of the lower leg bones.
5. The place where two bones meet.
7. The triangle shaped bone in your upper back.
12. The bone that protects your brains.
15. One of the bones in the vertebral column.
17. One of the forearm bones.
8. The largest bone in the human body.
10. The bone in your shoulders.
13. The substance inside a bone that makes
blood cells.
14. The bone in the centre of the chest.
16. One of the lower leg bones.
Unscramble the following words:
Axpnyrh _______________
e r t g c a l a i ____________________________
lvuua _________________________
c i l a p i e a r s l __________________________
e l r s i d a u i r a __________________________
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TERM3/WEEK10
Choose the correct answer:
1. What is the body temperature of a normal man?
A. 81.1oC
B. 36.9oC
C. 98.6oC
D. 21.7oC
2. Which of the following helps in clotting of blood?
A. Vitamin B1
B. Vitamin B2
C. Vitamin D
D. Vitamin K
3. Red blood corpuscles are formed in the
A. Liver
B. Bone marrow
C. Kidneys
D. Heart
4. How many bones are there in an adult human being?
A. 210
B. 260
C. 206
D. 300
5. The pancreas secretes
A. Insulin
B. Bile juice
C. Peptic juice
D. None of these
6. Tibia is a bone found in the
A. Skull
B. Arm
C. Leg
D. Face
7. What is the main component of bones and teeth?
A. Calcium carbonate
B. Calcium phosphate
C. Calcium sulphate
D. Calcium nitrate
8. The main constituent of haemoglobin is
A. Chlorine
B. Iron
C. Calcium
D. None of these
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Revision:
1. The function of haemoglobin is
A. Transportation of oxygen
B. Destruction of bacteria
C. Prevention of anaemia
D. Utilization of energy
2. Which of the following vitamins promote healthy functioning of eyes in human beings?
A. Vitamin B
B. Vitamin C
C. Vitamin A
D. Vitamin D
3. The average heartbeat per minute in a normal man is
A. 50
B. 70
C. 80
D. 100
4. A person with which of the following blood groups can receive blood of any group?
A. A
B. AB
C. B
D. O
5. Myopia is a disease connected with
A. Ears
B. Eyes
C. Lungs
D. Brain
6. Leukaemia is a disease of the
A. Lungs
B. Blood
C. Skin
D. Nerves
7. Short-sightedness can be corrected by using
A. Convex lens
B. Concave lens
C. Convex-concave lens
D. Concave-convex lens
Match the following
Column I
A. Beriberi
B. Scurvy
C. Rickets
D. Night Blindness
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Column II
1. Vitamin A
2. Vitamin B
3. Vitamin C
4. Vitamin D
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Human Body Maze Worksheet
Directions: Guide the skeleton to the top hat.
Reading Comprehension Worksheet
Human Body
Your heart is really a muscle. It's located a little to the left of the middle of your chest, and it's
about the size of your fist. There are lots of muscles all over your body - in your arms, in your
legs, in your back, even in your behind. But this muscle is special because of what it does the heart sends blood around your body. The blood provides your body with the oxygen and
nutrients it needs. It also carries away the waste that your body has to get rid of.
Your heart is sort of like a pump, or two pumps in one. The right side of your heart receives
blood from the body and pumps it to the lungs. The left side of the heart does the exact
opposite: it receives blood from the lungs and pumps it out to the body. By the time you're
grown up, your heart will be beating (pumping) about 70 times a minute.
How does the heart beat? Before each beat, your heart fills with blood. Then it contracts to
squirt the blood along. When something contracts, it squeezes tighter - try squeezing your
hand into a fist. That's sort of like what your heart does so it can squirt out the blood. Your
heart does this all day and all night, all the time. Every day, an adult heart pumps 2,000
gallons (7,500 litres) of recycled blood by filling and contracting. The heart is one tough
worker!
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_________________________________
1. Where is your heart located?
_________________________________
2. Where else can you find muscles in your body
besides the heart?
_________________________________
_________________________________
_________________________________
3. Why do we need a heart?
_________________________________
_________________________________
_________________________________
4. Which organ(s) directly works with the heart?
_________________________________
_________________________________
Joints in our body:
What are the four types of joints in our body? Also, write their location and function in the body.
Type of joint
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Location in the body
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Function
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