Transcript Respiratory System

The
Respiratory
System
Sood,
Chantal
Vargas,
Roselynn
Per. 3
Monday 13, 2013
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• Pharynx
• Larynx
(Voice Box)
• Bronchi
The bronchi are tubes that lead into the lungs. It is split into the left
and right bronchus. The trachea (a.k.a. windpipe) split into two sides.
The bronchi then separates into the bronchioles. The filter the air we
breathe in while inhaling.
•Lungs
The lungs, the main organs in the respiratory system, are spongy and
located on both sides of the chest cavity. The lungs are separated into
two sides: the right and left. The left lung is divided into the superior
lobe, and the right side is made of the superior, middle, and inferior
lobe. Inside the lungs, oxygen is then exchanged with the body’s
waste material, carbon dioxide. In the lungs, red blood cells come in
to collect oxygen and carry it to body cells After dropping off the
oxygen, the blood cells pick up the CO2 and take it to the lungs to be
breathed out.
•Aveoli
The bronchial tubes lead into the lungs, where they are split into little sacs
called aveoli. The average human being has about 600 of these sacs in their
body. They are surrounded by tiny capillaries. This is the place oxygen is
exchanged for carbon dioxide. Tiny capillaries surrounding the aveoli that
are connected to pulmonary ateries carry deoxygenated blood to these
arteries to be replenished. Then, pulmonary veins carry the newly
oxygenated blood back to the body cells that need them.
•Diaphragm
The diaphragm is the muscle underneath the lungs. It causes the
chest to expand as it contracts, and it as goes back to its normal
state, the chest cavity contracts.
•The primary function of the respiratory system is to supply blood with
oxygen for cells to function
•Cells need oxygen to live and carry out their certain functions
•Lungs excrete the carbon dioxide which is a waste product of the cells
•Breathing occurs because of air pressure differences between the lungs
and the atmosphere
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When the lungs expand we
 The blood becomes oxygen
breathe in.
rich when oxygen from the
alveoli is passed into the
The lungs expand when the rib
capillaries
muscle and diaphragm expand
which therefore makes the
 The carbon dioxide from the
chest cavity larger.
red blood cells moves into the
alveoli
Nose filters and wets the air
before it passes through the
 The carbon dioxide flows out of
larynx so that it will not irritate
the alveoli and bronchial tubes
the lungs
and into the nose and mouth
Then it goes into the trachea(
 When the diaphragm and rib
filters inhaled air)
cage muscles relax, the chest
cavity gets smaller and air is
Cilia in the airways trap the
forced out of the lungs
waste particles which causes
you to sneeze or cough in order  The oxygen rich blood flows
to get particles out
back to the heart where it gets
pumped to the rest of the body
Gases are exchanged in the
alveoli
While inhaling, the heart pumps
blood rich in carbon dioxide
and low in oxygen, to the lungs
through the pulmonary arteries
At the end of the pulmonary
arteries are capillaries which
surround the aveoli
How does oxygen reach the blood cells??
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Oxygen from alveoli is diffused into blood
 Oxygen rich blood goes to the heart where it pumps blood to the
tissues
 Hemolgobin releases oxygen into cells
 Carbon dioxide comes out of the cells
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the carbon dioxide travels to the heart
 The heart pumps blood to the lungs where it is exhaled.
Asthma: a medical disorder that leads to swollen and
narrow lung airways. It triggers shortness of breath,
wheezing, tightness of the chest, and coughing.
Causes:
 Air pollution
 Flower Pollen
 Tobacco Smoke
 Dust Mites
 Mold
 Forrest Fire or Burning Smoke
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Although Asthma attacks can be serious, they can also be prevented
How Asthma Patients Ward Off Asthma Attacks
 Keep all living areas clean
 Don’t allow the growth of mold
 Prevent being in regions of high pollen and smoke levels
 Drink water to reduce mucus in airways in the lungs
 Treatment Options
 Treatment options for asthma are plentiful and useful for patients
with this chronic lung condition
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Rescue Medications ( inhalers, Ipratropium)
Allergy Treatment (allergy shots, allergy medication)
But in emergencies, the patient is urged to go to the doctor
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