Human Body Unit
Part
VII/XIII
Human Body Unit
Part
VII/XIII
Human Body Unit
Part
VII/XIII

New Area of Focus: The Circulatory System
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy

Circulatory System: Delivers food and
oxygen to the body and carries carbon
dioxide and other waste products away.
Copyright © 2010 Ryan P. Murphy

Circulatory System: Delivers food and
oxygen to the body and carries carbon
dioxide and other waste products away.
Copyright © 2010 Ryan P. Murphy

Circulatory System: Delivers food and
oxygen to the body and carries carbon
dioxide and other waste products away.
“Also called the
cardiovascular
system.”
Copyright © 2010 Ryan P. Murphy

Consists of the following
-
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
Consists of the following
 Heart
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
Consists of the following
 Heart
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
Consists of the following
 Heart
 Blood
Vessels
Copyright © 2010 Ryan P. Murphy

Consists of the following
 Heart
 Blood
Vessels
Copyright © 2010 Ryan P. Murphy

Consists of the following
 Heart
 Blood
Vessels
Copyright © 2010 Ryan P. Murphy

Consists of the following
 Heart
 Blood
Vessels
 Blood
Copyright © 2010 Ryan P. Murphy

Consists of the following
 Heart
 Blood
Vessels
 Blood
Copyright © 2010 Ryan P. Murphy
The network of blood vessels
in your body is so large,
Copyright © 2010 Ryan P. Murphy
The network of blood vessels
in your body is so large, that if
unraveled,
Copyright © 2010 Ryan P. Murphy
The network of blood vessels
in your body is so large, that if
unraveled,
Copyright © 2010 Ryan P. Murphy
The network of blood vessels
in your body is so large, that if
unraveled, it could encircle the
earth twice.
Copyright © 2010 Ryan P. Murphy
The network of blood vessels
in your body is so large, that if
unraveled, it could encircle the
earth twice.
Copyright © 2010 Ryan P. Murphy
The network of blood vessels
in your body is so large, that if
unraveled, it could encircle the
earth twice.
The Heart is the motor that
pumps blood through your body.
Copyright © 2010 Ryan P. Murphy
Remember
cardiac
muscles!
The network of blood vessels
in your body is so large, that if
unraveled, it could encircle the
earth twice.
Copyright © 2010 Ryan P. Murphy
Remember
cardiac
muscles!
The network of blood vessels
in your body is so large, that if
unraveled, it could encircle the
earth twice.
The Heart is the motor that
pumps blood through your body.
Copyright © 2010 Ryan P. Murphy
• Your heart pumps about 2,000 gallons of
blood through your body a day.
Copyright © 2010 Ryan P. Murphy
• Your heart beats…
– 35,000,000 times a year
– 350,000 times a year
– 35,000 times a year
– 3,500 times a year
– 350 times a year
– 35 times a year
– 3.5 times a year
Copyright © 2010 Ryan P. Murphy
• Your heart beats…
– 35,000,000 times a year
– 350,000 times a year
– 35,000 times a year
– 3,500 times a year
– 350 times a year
– 35 times a year
– 3.5 times a year
Copyright © 2010 Ryan P. Murphy
• In order to fully understand the circulatory
system, we must understand cellular
respiration.
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
Cellular Respiration: Processes whereby
certain organisms obtain energy from
organic molecules.
Copyright © 2010 Ryan P. Murphy

Cellular Respiration: Processes whereby
certain organisms obtain energy from
organic molecules.
Copyright © 2010 Ryan P. Murphy

Cellular Respiration: Processes whereby
certain organisms obtain energy from
organic molecules.
Copyright © 2010 Ryan P. Murphy

Cellular Respiration: Processes whereby
certain organisms obtain energy from
organic molecules.
Copyright © 2010 Ryan P. Murphy

Cellular Respiration: Processes whereby
certain organisms obtain energy from
organic molecules.
Copyright © 2010 Ryan P. Murphy

Cellular Respiration: Processes whereby
certain organisms obtain energy from
organic molecules.
Learn more about cellular respiration at…
http://encyclopedia.kids.net.au/page/ce/Cellular_respiration
Copyright © 2010 Ryan P. Murphy
• When you breath out, you are releasing
water, carbon dioxide, and some heat.
Copyright © 2010 Ryan P. Murphy
• When you breath out, you are releasing
water, carbon dioxide, and some heat.
These are the by products of cellular
respiration in the trillions of cells in your
body.
Copyright © 2010 Ryan P. Murphy
• Below is a cell. The cellular organelle that
performs cellular respiration is the
mitochondria.
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• Below is a cell. The cellular organelle that
performs cellular respiration is the
mitochondria.
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• Respiration – The plant burns the sugar to
make energy.
Mitochondria
Chloroplasts
• When you breath out, you are releasing
water, carbon dioxide, and some heat.
– These are the by products of cellular respiration
in the trillions of cells in your body.
Copyright © 2010 Ryan P. Murphy
• Cellular Respiration
• C6H12O6 + 6O2 = Released energy + 6CO2 + 6H2O.
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
Cellular Respiration
-
-
-
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
Burns sugars for energy.
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
Oxygen is used.
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
Energy is released.
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
Occurs in most cells.
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• What type of cells in the human body are
going to have a lot of mitochondria to do
cellular respiration?
Copyright © 2010 Ryan P. Murphy
• Answer! Muscle cells in the heart must
always beat to keep you alive. It has a lot
of mitochondria in its cells to burn sugar for
energy.
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
Carbon dioxide produced.
O2
CO2
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
Carbon dioxide produced.
O2
CO2
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
Carbon dioxide produced.
O2
CO2
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
Carbon dioxide produced.
O2
CO2
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
Carbon dioxide produced.
O2
CO2
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
Water is produced.
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
Water is produced.
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
Water is produced.
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
Occurs in dark and light.
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• Photosynthesis provides the sugar (carbon
based) so animals can use that sugar and
through cellular respiration make energy.
Copyright © 2010 Ryan P. Murphy

The function of the circulatory system.
-

The function of the circulatory system.
 To
-
deliver food and oxygen to cells.

The function of the circulatory system.
 To
deliver food and oxygen to cells.
 To carry away waste.
CO2

The function of the circulatory system.
 To
deliver food and oxygen to cells.
 To carry away waste.
 To aid in disease prevention.
-

The function of the circulatory system.
 To
deliver food and oxygen to cells.
 To carry away waste.
 To aid in disease prevention.
 To deliver chemical messages (hormones).

By delivering food and oxygen to cells and
carrying waste products away, the
circulatory system maintains a state of
homeostasis in your body.
Copyright © 2010 Ryan P. Murphy

The circulatory system
Copyright © 2010 Ryan P. Murphy

The circulatory system
 Powered
by the heart.
Copyright © 2010 Ryan P. Murphy

The circulatory system
 Powered
by the heart.
 Blood carries food, oxygen, waste, chemical
messages.
Copyright © 2010 Ryan P. Murphy

The circulatory system
 Powered
by the heart.
 Blood carries food, oxygen, waste, chemical
messages.
 Blood vessels provide the paths of travel and
have unique structures.
Copyright © 2010 Ryan P. Murphy

The circulatory system
 Powered
by the heart.
 Blood carries food, oxygen, waste, chemical
messages.
 Blood vessels provide the paths of travel and
have unique structures.
Copyright © 2010 Ryan P. Murphy

The circulatory system
 Powered
by the heart.
 Blood carries food, oxygen, waste, chemical
messages.
 Blood vessels provide the paths of travel and
have unique structures.
Copyright © 2010 Ryan P. Murphy