Transcript The Respiratory System - Course

Warm-Up
• Name one organ in the respiratory system
and state its significance in the human body
• State three things you know about the
respiratory system.
The Respiratory System
By:
Chloë Durfee Sydney Modder
Ramya Ramesh Megumi Sharma
Chase Damis
Larynx/Pharynx
Epiglottis
Larynx
(Voice
Pharynx
• Blocks
foodBox)
and liquids
from (throat)
entering the
• Connects
• Provides passageway for
trachea pharynx to
trachea
respiratory and digestive
•• Spoon-like
tracts
Provides airwaystructure
• Tube like structure that
• Prevents food from
connects nasal and oral
entering respiratory tract
cavities to larynx
• Produces sound
• Coordinates breathing and
swallowing while eating
TracheaLungs
(Windpipe)
••Pair
Thisofisspongy,
the tubeair-filled
that air passes
organs.through in
order toon
geteither
to theside
bronchi
and then the
•Located
of thorax.
lungs.
•Covered by thin tissue called pleura.
•Pull in oxygen and absorbs it into linings of
lungs.
•Pushes oxygen into chambers of the heart so
oxygen travels throughout the body.
Alveoli/Bronchi
Bronchi
• Large tubes leading
from trachea to the
lungs
• Move air in and out of
lungs
• Made of cartilage
• Cleans, warms, and
moistens incoming air
Alveoli
• Tiny sacs in lungs
• 300-400 million in lungs
• Oxygenated and
deoxygenated blood
surrounds the alveoli
surface
• Gives oxygen to
surrounding capillaries
• Oxygen naturally moves
from alveoli to
bloodstream
Thoracic Diaphragm
• Expels urine/feces
• Prevents acid reflux
• Contracts and compresses when humans
inhale
ProZones
cesses
Respiratory
1.
Pulmonary
Zone-Site
Ventilationof gas exchange
Air
in and out
of lungs (Gases
are refreshed)
Conducting
Zone-Where
respiratory
organs cleanse air
2. External RespirationO2 from lungs to CO2
3. Transport of Respiratory GasesMoves O2 from lungs to blood and CO2 from tissues to blood
4. Internal RespirationOxygen from blood to tissue cells.
Carbon dioxide from tissue cells to blood
Major Functions/
How Respiratory Functions with other
Systems
How
It functions
Functionsof
With
Systems:
Major
the Other
respiratory
system are to:
•It works with the circulatory system to oxygenate blood,
• Introduce oxygen into the blood stream
which delivers oxygen to organs and tissues that need it.
• Not
let food system
go anywhere
butthe
thebrain
digestive
•It works with
the nervous
because
sendstract
signals to the lungs to breathe.
Breathing Processes
•
1.
2.
3.
4.
5.
6.
7.
•
1.
2.
3.
Respiration:
Oxygen moves through nose/mouth into trachea.
Goes into bronchi (connected to lungs).
Moves into smaller bronchioles.
Lungs and diaphragm contract. Chest cavity relaxation.
Oxygen travels to alveoli.
Exchanged for carbon dioxide.
New oxygen transported by red blood cells throughout
body.
Expiration:
During use, carbon dioxide is created.
Moves inside veins to lungs. Exchanged in alveoli.
Carbon dioxide goes up trachea and out of nose and mouth.
END
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