Download Circulatory-Respiratory System

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Your heart is located in the
middle of your chest, between
your lungs. You feel it on the left
side because the bottom of the
heart is situated there.
It beats around 100,000 times a
day.
When you’re a child your heart’s
size is the same as a fist. When
you are an adult it is about 2
fists.
A women’s heart weights about
8 ounces, a man’s 10 ounces.
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The heart is divided into two halves:
◦ Upper two chambers: Atriums
They receive blood that is returning from the body.
◦ Lower two chambers: Ventricles
They pump blood form the heart to the body.
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Right Atrium
Receives blood that
returns to the heart
from the superior and
inferior vena cava.
Left Atrium
Receives blood that
returns to the heart
from the pulmonary
veins.
Atrium
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Right Ventricle
Receives blood from
the right atrium and
pumps it to the main
pulmonary artery.
Left Ventricle
Receives blood from
the left atrium and
pumps it to the aorta.
Ventricles
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http://www.youtube.com/watch?v=mH0QTW
zU-xI
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Heart Attack
A heart attack
occurs when blood
flow to a section of
heart muscle,
becomes blocked.
If the flow of blood
isn’t restored
quickly, the
section of heart
muscle becomes
damaged from lack
of oxygen and
begins to die.
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Heart Failure
Disorder caused
when the heart is
so weak that it is
incapable of
pumping blood,
causing that
tissues would not
receive an
adequate amount
of blood flow.
The function of
blood in our body is
to carry Oxygen and
nutrients around all
the body.
 The blood is
composed by:
 Blood Plasma (55%)
 Red Blood Cells
(45%):
-White Blood Cells
-Red Blood Cells
-Platelets
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Function: The function of the blood plasma is to
carry the blood cells around the body.
 Composition:
-Water (90%)
-Dissolved substances (10%)
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This kind of cells are made up in the bone
narrow.
In the circulatory system this cells carry oxygen
to every place in the body.
The red blood cells are red at cause of the
haemoglobin that is in their cytoplasm.
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This cells have to defend the body from any
foreign material, bacteria, virus, etc. That
could damage the body.
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http://www.youtube.com/watch?v=JnlULOjUh
SQ
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The platelet is used when the body starts to
lose blood. The platelet immediately goes to
the wound where the blood is going out and
it attempt the blood go out of the body.
There are 3 kinds of
blood vessels
-Arteries
-Veins
-Capillaries
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The function of the
arteries is to transport
oxygenated blood
through all the body.
 Some of the most
important arteries are:
-Common carotid artery
-Femoral artery
-Brachial artery
-Aorta
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The veins transport the
deoxygenated blood
from the body to the
heart.
 Some of the most
important Veins are:
-Jugular vein
-Venae cavae
-Femoral vein
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This blood vessels are the smallest, the
capillaries are so small that the red blood
cells have to pass through this blood vessel
in one row.
The capillaries are used to transport oxygen
to each cell in the body.
The Lungs
The main function of the
lungs is to transport oxygen
from the atmosphere into the
bloodstream and to release
carbon dioxide from the
bloodstream.
When you breath, air passes
through your mouth or nose
goes through the windpipe
called Trachea, which divides
into two tubes, one goes to
each lung.
Tiny little bloodstreams surround each
alveoli.
 Here is where oxygen is picked up by the
blood and carried to the rest of the body.
 The alveoli are the primary gas exchange
Units of the lungs.
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http://www.britannica.com/EBchecked/topic/
499530/human-respiration/66154/Gasexchange-in-the-lung
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This happens in the alveoli
The oxygen goes in the lungs and touches
the capillaries
Then the oxygen swaps with the carbon
dioxide and the oxygen is carried to the
rest of the body.
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http://www.youtube.com/watch?v=vu_ONM3
Bj9A&feature=related
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Some of the diseases caused in the lungs are:
Emphysema: Enlargement of the air spaces in
the lungs.
Pulmonary Embolism: When a blood clot
obstructs an artery leading to the lung.
Tuberculosis: Bacterial infection of the lung,
very common today.
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Bronchitis: is an inflammation of the
Bronchi's.
Pneumonia: Is an infection caused by fungi or
viruses.
Pneumoconiosis: This disease is caused by
the inhalation of dust or such.
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Is a disease in which narrows and inflames
the airways.
It causes shortness of breath and coughing
and also chest tightness
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What happens is that people with asthma
have inflamed airways.
This means that it is harder for them to
breath.
When the airways react, the muscles around
them tighten, this causes the airways to
narrow and less oxygen goes to your lungs
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Is the uncontrolled cell growth in the tissue
of the lungs.
The symptoms of this disease is shortness
of breath, weigh loss and coughing.
The most common cause of lung cancer is
long-term exposure to tobacco smoke.
Lung cancer can be seen by a biopsy or
computed tomography.
Lung Cancer
Here we can see
an x-ray of lungs
with cancer. We
can clearly see
the difference
between these
lungs and what
normal healthy
lungs would look
like.
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Circulatory System Crossword
http://www.vtaide.com/png/bloodpuzzle.html
Heart Crossword
http://www.paulinemolloy.co.uk/heart1.html
Respiratory System Crossword
http://www.vtaide.com/png/respirepuzzle1.html