PREPARED BY: JAREN JOYCE A. BENTOR SUBMITTED TO: MA'AM YOLANDA REYES

2. PARTS OF THEPARTS OF THE
RESPIRATORYRESPIRATORY
SYSTEMSYSTEM

4. RESPIRATIORESPIRATIO
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6. The LARYNX forms the entrance to the
lower respiratory system. With the help
of the epiglottis (a leaf-shaped flap), the
larynx prevents food or liquid from
entering the lower respiratory tract
while swallowing.
The TRACHEA(windpipe) is the
passage leading from the pharynx to the
lungs.
The trachea divides into the two main
BRONCHI (tubes) one for each lung.
These, in turn, subdivide further into
bronchioles.

9. The bronchioles end in air sacs called
the alveolialveoli.. Alveoli are bunched together
into clusters to form alveolar sacs. On the
surface of each alveolus, there is a
network of capillaries carrying blood that
has come through veins from other parts
of the body. Here gas exchange occurs --
carbon dioxide from the blood is
exchanged for oxygen from the alveoli.
After the blood
is oxygenated, it goes to the heart
(between the two lungs), where it is
pumped out to all of the body tissues and
extremities. When you breathe out, the
carbon dioxide is exhaled and expelled
from the body.

10. The lungs are the main organs of
the respiratory system. In the lungs oxygen is taken
into the body and carbon dioxide is breathed out.
The red blood cells are responsible for picking up
the oxygen in the lungs and carrying the oxygen to
all the body cells that need it. The red blood cells
drop off the oxygen to the body cells, then pick up
the carbon dioxide which is a waste gas product
produced by our cells. The red blood cells transport
the carbon dioxide back to the lungs and we
breathe it out when we exhale.
The RIGHT LUNG is divided into three LOBES, or
sections.
The left lung is divided into two LOBES.

16. WHAT CAUSES HICCUPS?
Hiccups are the sudden movements of
the diaphragm. It is involuntary --- you
have no control over hiccups, as you
well know. There are many causes of
hiccups. The diaphragm may get
irritated, you may have eaten to fast, or
maybe some substance in the blood
could even have brought on the hiccups.