2. CLASSROOM RULES (The 5
P’s)
1st Be Positive
2nd Be Productive
3rd Be Polite
4th Be Prepared
5th Be Respectful
3. •Be on time at the beginning of the day and after lunch
or recess breaks.
•Come prepared with supplies and completed
assignments.
•Be kind, polite and courteous to others.
•Keep your hands and feet to yourself.
•Be respectful of classmates, teachers and property.
•Listen to the teacher and classmates, and follow
directions.
•Work hard and always do your best.
•Be safe.
•Raise your hand when you would like to speak in class
or if you need to leave the classroom for any reason.
4. Based on the video presented earlier,
what are the three major part of the
Circulatory System? Name them.
Explain the function of each part.
6. GROUP ACTIVITY
GROUP 1
Label the parts and give the functions of each
part of the respiratory system using a diagram
and a literature (Activity sheet # 1)
GROUP 2
Solve a jigsaw/picture puzzle of a human
respiratory system, will identify each part and
give their functions with the help of a
literature. (Activity Sheet # 2)
7. GROUP 3
draw and identify the parts and functions of
the human respiratory system.
GROUP 4
role play the path of air in the human
respiratory system.
GROUP 5
make a lung model given some materials to
work on.
10. The Respiratory System – is the
system of the body that deals
with breathing. When we
breathe, the body takes in the
oxygen that it needs and
removes the carbon dioxide that
it doesn’t need.
17. Body parts protect one another from
harm or injury. The health and
condition of the whole body depends
upon the health and condition of
each body part. This principle also
applies to a society of people. Every
person is a part of society. The
condition of the whole society
depends upon the condition of each
part. Shouldn’t the parts, therefore,
strive to protect one another?
22. 1. Tiny hairs lined inside the nose
prepare air for the lungs by.
a. cleaning it
b. drying it
c. moistening it
d. warming it
23. 2. How does the body use the
energy released in its cells?
a. to rest the body
b. for making oxygen
c. to lower body temperature.
d. for muscles to move
24. 3. When you exhale, the
diaphragm helps air leave the
body by
a. expanding the lungs
b. making the chest larger
c. pushing air in the lungs
d. making the chest smaller
25. 4. The body’s cells use oxygen to
break sugar into ___________.
a. oxygen and water
b. carbohydrates and water
c. protein and water
d. carbon dioxide and water
26. 5. What happens when you breathe in
air?
a. The diaphragm expands and the
ribcage contracts.
b. the diaphragm contracts and the
ribcage expands.
c. the diaphragm expands and the rib
cage collapses.
d. The diaphragm contracts and the
ribcage remain the same.
31. When you breathe in, air enters the nasal cavity by
passing through the nostrils. Hairs within the cavity filter
out dust, pollen and other foreign particles before the air
passes into the two passages of the internal nasal cavity.
Here the air is warmed and moistened before it passes
into the nasopharynx. A sticky mucous layer traps
smaller foreign particles, which tiny hairs called cilia
transport to the pharynx to be swallowed.
32. Commonly called the throat, the pharynx is a small
tube that measures approximately 10–13 cm from the
base of the skull to the level of the sixth cervical
vertebra. The muscular pharynx wall is composed of
skeletal muscle throughout its length. The funnel-
shaped pharynx connects the nasal cavity and mouth
to the larynx (air) and oesophagus (food). It is a
passageway for food as well as air, so special
adaptations are required to prevent choking when food
or liquid is swallowed.
33. The larynx, or voice box, has rigid walls of
muscle and cartilage, contains the vocal cords
and connects the pharynx to the trachea. It
extends for about 5 cm from the level of the third
to sixth vertebra.
34. The trachea or windpipe denotes the start of the
lower respiratory tract. It is about 12 cm long and
2 cm in diameter. It contains rings of cartilage to
prevent it from collapsing, and it is flexible. It
travels down the neck in front of the esophagus
and branches into the right and left bronchi.
35. The epiglottis is the small flap of cartilage at the
back of the tongue which closes the top of the
trachea when you swallow to ensure food and
drink pass into your stomach and not your
lungs.
36. Your lungs are the organ that allows oxygen to be
drawn into the body. The paired right and left
lungs occupy most of the thoracic cavity and
extend down to the diaphragm. They hang
suspended in the right and left pleural cavities
straddling the heart. The left lung is smaller than
the right.
37. The bronchi branch off the trachea and carry air
to the lungs. By the time inhaled air reaches the
bronchi, it is warm, clear of most impurities and
saturated with water vapour.
38. Bronchioles are small airways that extend from
the bronchi and connect the bronchi to small
clusters of thin-walled air sacs, known as alveoli.
Bronchioles are about 1 mm in diameter and are
the first airway branches of the respiratory
system that do not contain cartilage.
39. In each lung there are approximately 300 million
gas-filled alveoli. These are responsible for the
transfer of oxygen into the blood and the
removal of waste such as carbon dioxide out of
the blood. This process of transfer is known as
gaseous exchange.
40. The diaphragm is a flat muscle that is located
beneath the lungs within the thoracic cavity and
separates the chest from the abdomen. The
diaphragm is one of several components
involved in breathing, which is the mechanism of
drawing air – including oxygen – into the body
(inhalation) and removing gases including carbon
dioxide (exhalation).
