SCIENCE 9
Jaime S. Crispino
RESPIRATORY AND CIRCULATORY
SYSTEMS, WORKING WITH OTHER
ORGAN SYSTEMS
MOST ESSENTIAL LEARNING COMPETENCY:
Explain how the respiratory and circulatory systems work
together to transport nutrients, gases, and other
molecules to and from the different parts of the body.
Objectives:
1. Identify the parts of the respiratory system.
2. Describe the function of each part of the
respiratory system.
3. Summarize the passage of air through the
respiratory system.
Let’s check this out!
Swimming
in the pool
Sitting on the
ground
RESPIRATORY SYSTEM
Breathing
Why isisbreathing
so that
What
in the breath
important?
we
need so much?
RESPIRATORY SYSTEM
It is involved in the intake and
exchange of
an
Oxygen
(Ogases
2) between
Carbon
organism and the environment.
Dioxide (CO2)
Breaks down food
to use for energy
Waste product
Parts and function of the Respiratory System
Inside
the the
lung,
the through
bronchi
branches
out
Theenters
epiglottis
allows
air to pass
Air
body
the from
nose the
called
bronchioles.
larynx
to the long tube in the chest cavity
and
mouth
called the
trachea
windpipe.
When
air enters
theornose,
mucus that lines
The
trachea
branches
two
large
tubes
the
nasal
or nasal
warms
Ending
in cavity
a clusters
of into
tinypassages
air sacs
called
called
bronchi
or bronchial
tubes and
and
moistens
air. of oxygen
alveoli
for gasthe
exchange
carbon
dioxide
The
air passes
the opening
called
lungs
are athrough
pair of spongy,
air-filled
larynx, located
which ison
known
voice
boxchest.
organs
eitherasside
of the
MOUTH
AND NOSE
NASAL
CAVITY
ALVEOLI
LARYNX
TRACHEA
BRONCHI
LUNGS
BRONCHIOLES
Activity 1: Parts and Function of the Respiratory System
Study the diagram to identify the parts of the respiratory system.
Then, describe the function of the respiratory system using your
own words. Write your answer on the space provided.
D
Parts
Function (in your own words)
A____________________________________
____________________________________
Function (in your own words)
B____________________________________
_________________________________________________________________________
____________________________________
_________________________________________________________________________
C____________________________________
_________________________________________________________________________
_________________________________________________________________________
____________________________________
E
_________________________________________________________________________
F
_________________________________________________________________________
G
_________________________________________________________________________
Parts
A
B
C
To check your understanding:
THANK YOU FOR
WATCHING!!