Download Circulatory and Respiratory Systems

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Silent Read first 15
Review CYU from Yesterday
◦ Pg. 81 1-10, 13 & 18
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PowerPoint Presentation
◦ Circulatory and Respiratory Systems
 Add the ‘new’ systems to your diagram from start of
unit…
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Complete Handout
◦ This will be due Tomorrow
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You will also receive test review sheets
(c) McGraw Hill Ryerson 2007
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The circulatory system consists of the
heart, arteries, capillaries, and veins.
Your heart is a pump that pushes
approximately 4 L of blood through your
body every minute.
The main purpose of the respiratory
system is to exchange gases.
The main organ of the respiratory system
are the lungs.
See pages 82 - 83
(c) McGraw Hill Ryerson 2007
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The heart pumps blood
throughout the body.
The heart has four chambers:
◦ Left atrium
 Blood arrives from your lungs
◦ Right atrium
 Blood arrives from your body
◦ Left ventricle
 Pumps blood to your body
◦ Right ventricle
 Pumps blood to your lungs
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Between each of these
chambers is a valve.
Make note of the direction of
blood flow
See page 84
(c) McGraw Hill Ryerson 2007
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The circulatory system moves blood throughout the body.
There are three types of blood vessels:
◦ Arteries
 Carry oxygenated blood away from your heart
◦ Capillaries
 Tiny blood vessels responsible for
the transfer of oxygen and nutrients
into the body’s cells and collecting
waste from the cells.
◦ Veins
 Blood containing waste
products returning to the heart.
See pages 85 - 86
(c) McGraw Hill Ryerson 2007
SVC
& IVC
RV
PA
Copy Flowchart Pg. 87
B
 Starting with the right atrium, try
placing the following structures in
A correctLVorder that blood
LAflows
the
through the body.
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Left ventricle (LV)
Body (B)
Right atrium
Left atrium (LA)
Lungs (L)
Right ventricle (RV)
L
PV
Now Add:
-Aorta (A)
-Pulmonary Vein (PV)
-Pulmonary Artery (PA)
-Superior Vena Cava (SVC)
-Inferior Vena Cava (IVC)
See pages 87 - 88
(c) McGraw Hill Ryerson 2007
Blue =
Deoxygenated
Red =
Oxygenated
(c) McGraw Hill Ryerson 2007
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About 55% of blood is a liquid
called plasma.
◦ Contains proteins, minerals, and
other substances.
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Red blood cells carry oxygen
from the lungs to the cells.
White blood cells fight infection.
Platelets are important for
clotting blood.
See pages 88 -89
(c) McGraw Hill Ryerson 2007
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http://www.youtube.com/watch?v=GbttJ5do9M
(c) McGraw Hill Ryerson 2007
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The respiratory system moves
oxygen into your body and carbon
dioxide out of your body.
When you inhale, air is filtered by
tiny hairs called cilia.
Air passes through your larynx
and continues down your trachea
towards your lungs.
At the base of the trachea are two
tubes called bronchi (brong´ki).
Bronchi branch into smaller air
tubes called bronchioles
(brong´ke-ōl-es).
See page 90
(c) McGraw Hill Ryerson 2007
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There are millions of alveoli at the
ends of the bronchioles, and this is
where gas exchange takes place.
Oxygen and carbon dioxide move
back and forth between the alveoli
and the surrounding blood vessels.
◦ O2 comes into Aveolus and then
passes on to the Red Blood Cells,
which in turn give back CO2 which is
then expelled out of the lungs…
See page 91
(c) McGraw Hill Ryerson 2007
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Smoking may cause both respiratory disease and heart disease.
Respiratory diseases could include emphysema and lung cancer.
◦ Emphysema causes the alveoli walls to lose their elasticity. This may
make breathing very difficult.
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Smoking also destroys the cilia lining your respiratory system.
Take the Section 2.3 Quiz
(c) McGraw Hill Ryerson 2007
See page 92
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Test includes sections 2.1, 2.2., & 2.3
Specifically:
◦ Definitions
 That big list is due…
◦ Diagrams
 The Body Systems
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There are eleven of them
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Sm & Lg Intestine
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Heart & Lungs
 Digestive & Excretory
 Circulation & Respiratory
◦ Key Points:
 I.e. Characteristics of a system, 4 levels of organization, Tissues & functions,
Nutrients & functions, 4 stages of digestion & the “parts” included.
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Suggest you use study guide, Chapter Review & any “Reading
Checks” as study tools – along with all CYUs and handouts
received…
(c) McGraw Hill Ryerson 2007