Respiratory System
Question:
• How are particles of foreign matter expelled
from the respiratory system?
Respiratory System
• Main function is to supply oxygen to the body
and remove carbon dioxide and water.
What is the difference between
breathing and respiration?
Breathing
• Movement of the chest that
brings air into the body
through the lungs
Respiration
• Chemical reaction used by
cells to release energy from
glucose
• Produces CO2 and H2O as
waste products
Organs of the respiratory system
• The nose- Air enters the
body through the nose
into the nasal cavities
which are lined with
cilia- tiny hair-like
projections that move
together in a sweeping
motion.
Organs of the respiratory system
• The Pharynx- air enters
the pharynx (a.k.a. the
throat), a tube-like
passage way also used
by food and liquid
• Contains the vocal
chords
Organs of the respiratory system
• The trachea- tube held
open by rings of
cartilage – called the
wind pipe
• Lined with cilia and
mucous
• Epiglottis- small flap of
tissue that folds over
the trachea and
prevents food or liquid
from entering.
Organs of the respiratory system
• Bronchi and Lungs• Bronchi are passages that
direct air into the lungs.
• Lungs are the main organ of
the respiratory system.
• Bronchioles are the smallest
tubes of the bronchi that
end in clusters called aveolitiny sacs of tissue that
specialize in the movement
of gasses between the
blood and air.
Create a multi-layer foldable
• Outside of the foldable
• Inside the foldable
Respiratory System Foldable
• Glue down on page.
• Attach the Pharynx to the
Bronchi.
• Add the following
information.
• Bronchi- main passage
way into lungs
• Alveoli- Functional units
of lungs that permit gas
exchange. Found in small
clusters at the end of the
bronchioles.
Respiratory System Foldable
• Glue along dotted edges.
• Write the functions or the
ribcage under the flaps.
• The rib cage has 3
important functions:
• 1) Protection- protects
heart and lungs
• 2) Support- provides strong
framework for muscles to
attach
• 3) Respiration- flexible can
expand and contract by the
action of the muscles
Respiratory System Foldable
• Glue on the dotted edges.
• Write the following information
under the flap:
• The human lungs are a pair of
large, spongy organs optimized
for gas exchange between our
blood and the air. Our bodies
require oxygen in order to
survive. The lungs provide us
with the vital oxygen while also
removing carbon dioxide before it
can reach hazardous levels. If the
inner surface of the lungs could
be stretched out flat they would
occupy an area of 80-100 square
meters about the size of half a
tennis court.