Download respiratory system cp - Appoquinimink High School

There is the Upper
respiratory tract and Lower
respiratory tract
What organs do you think are in
each tract?
Come up and list them.
The Respiratory System
UPPER RESPIRATORY SYSTEM
LOWER RESPIRATORY SYSTEM
NOSE
LARYNX
NASAL CAVITY
TRACHEA
PARANASAL CAVITIES
PHARYNX
ORAL CAVITY
BRONCHI
LUNGS
THE NOSE /
Nasal Cavity
• Air enters through two openings, THE
EXTERNAL NARES or NOSTRILS
• The Nasal cavity is made up of:
– many bones
–cartilage (The tip of your nose)
–Sinuses (Pockets between eyes
or ears).
• The back of the nostrils lead to
the pharynx
What tissues are in the nasal
cavity and what role does it play?
• Epithelial Tissue with cilia
• Has mucous secreting cells that
combined with the cilia help trap dust
and move them out of the nose or into
the pharynx (throat) which gets
swallowed.
THE PHARYNX (Throat)
• Is a chamber shared by the digestive and
respiratory systems.
• It begins at the back of the nostrils and
extends to the larynx.
• What role in the respiratory system does it
play? What role in the digestive system
does it play?
THE PHARYNX
Functions of the Pharynx:
1. A passageway for food traveling
from the oral cavity to the
esophagus.
2. A passageway for air passing
between the nasal cavity and the
larynx.
3. Helps produce the sounds of
speech.
• If a function of the pharynx is
to both let in air and food, how
does this process work?
• What is happening when “Food
goes down the wrong tube?”
THE LARYNX
• JOINS THE PHARYNX WITH
THE TRACHEA.
• IT IS ALSO CALLED THE VOICE
BOX/ ADAMS APPLE
• THE EPIGLOTTIS PREVENT
INGESTED FOOD FROM
ENTERING THE RESPIRATORY
TRACT.
THE LARYNX
THE LARYNX
THE
EPIGLOTTIS
THE EPIGLOTTIS
THE TRACHEA
• IS A TUBULAR STRUCTURE
• LIES IN FRONT OF THE
ESOPHAGUS
• YOUR WINDPIPE
• FILTERS AIR AS IT GOES IN
AND OUT.
THE TRACHEA
BRONCHI
• The trachea branch into 2
called the Bronchi (one for
each lung).
• Each bronchus branches
into increasingly smaller
passageways
• Looks like a tree.
Bronchi eventually Branch into:
Alveoli
• The smallest unit in your
respiratory system.
• They contain blood vessels
(capillaries) which are the site
where your oxygen and carbon
dioxide is exchanged.
• They also have white blood cells
to fight bacteria.
Alveoli Exchange of Gases:
• Oxygen diffuses from aveolar walls and
enters the blood.(where it can now go to
other cells in the body)
• Carbon Dioxide diffuses from the blood
through the walls and enters the aveoli.
(where it can be exhaled and released)
Alveoli Exchange of Gases:
Using the picture below EXPLAIN the gas
exchange process:
Why do the blood cells start blue
and then turn red?
THE LUNGS
• ARE A PAIR OF CONE SHAPED ORGANS
LYNING IN THE PLEURAL CAVITIES.
• EACH LUNG IS DIVIDED INTO LOBES
• THE RIGHT LUNG HAS 3 LOBES.
• THE LEFT LUNG HAS 2 LOBES.
• WHICH LUNG IS LARGER?
Right Lung
/
Left Lung
What other system is the
respiratory closely related to?
Vocab Explanation Activity
Cardio-respiratory connection
is the vessel transporting
de-oxygenated blood
from the right ventricle to
the lungs.
This blood flows to the
pulmonary capillaries that
are wrapped around the
alveoli.
Cardio-respiratory connection
There is the diffusion of CO2
from the pulmonary capillaries
into the alveoli
At the same time there is the diffusion of O2 from the
alveoli into the pulmonary capillaries.
Cardio-respiratory connection
is the vessel
transporting oxygenrich blood from the
lungs to the left
atrium.
The Heart
The Heart