Download Circulatory System

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1. Cellstissueorgansorgan
systemsorganisms
2. An organ system is a group of organs working
together to perform the same function, like the
respiratory system
3. The lungs, which exchange inhaled oxygen for
carbon dioxide to be exhaled
4. The brain, which tells the body what to do
5. Brings in oxygen and removes carbon dioxide
Circulatory System
SWBAT define and describe the circulatory system
and how it works with the respiratory system
The Circulatory System
 Also known as the
cardiovascular system
 The circulatory system
moves all substances, such
as oxygen and nutrients, to
or from cells where they are
needed or produced,
responding to changing
demands.
 The circulatory system is the
body’s “delivery service”
Parts of the Circulatory
System
 Heart: the pump that keeps blood moving trough
blood vessels
 Blood: thick liquid that transports nutrients and
wastes
 Plasma: makes up blood, mostly water
 Platelets: give the blood its thickness
 Red blood cells: transports oxygen
 White blood cells: helps fight infections
 Blood vessels: transport blood throughout the
body
Heart
 The main organ of the
circulatory system
 Pumps the blood
throughout the body
Blood
BLOOD
55%
PLASMA
WHITE BLOOD CELLS
RED BLOOD CELLS
PLATELETS
Plasma
 55% of the blood, that is made up of 90% water.
 Other 10% is composed of broken down nutrients
(minerals, proteins, cholesterol,et)
 Suspends and carries blood cells; why blood is
liquid and runny
Platelets
Give the blood its thickness, and helps in blood clotting.
If you get a cut, your platelets are what begin to heal the area
with scabbing.
Red Blood Cells
 Red blood cells carry the
oxygen
 The have HEMOGLOBIN
that can BIND to the
oxygen and then carry it.
White Blood Cells
 White blood cells are types
of immune cells that fight
infectious disease.
Blood Vessels
 Vessels transport blood
throughout the body
 VESSELS are the VEHICLES
for blood to transfer
Respiratory & Circulatory
Systems are BFFs
 The respiratory system brings in oxygen
to the body and releases carbon
dioxide
 Then, that oxygen enters and the
carbon dioxide exits the circulatory
system and travels through the body
through the blood
 The respiratory and circulatory systems
show us that organ systems are not
independent, BUT WORK TOGETHER for
the benefit of the body
Why is blood red?
 First off, blood is always red,
even if veins may look blue
 Sometimes blood is more red
than at other times, and can
appear kind of purple
 The more oxygen blood has,
which it gets from the lungs
the brighter red the color
How does our blood travel?
 http://www.kscience.co.uk/animations/blood_sy
stem.swf
THINK-PAIR-SHARE
1. At what point in the previous graphic did the
blood turn from a darker color to a brighter
red? Why did this change occur?
2. The farther the blood traveled after turning
bright red, the darker the color turned. Why?
3 Important Facts
 Complete the bottom box on your notes page to
sum up what you think were the most important
parts of today’s lesson
Dear Tim & Moby
 http://www.brainpop.com/health/bodysystems/
circulatorysystem/
 Turn to the page titled Brain Pop
 Annotate the questions before we watch
 We will answer the questions after the video!
Independent Practice
 Noise level o and independently
 Answer the questions, complete the vocab
sentences, and complete the frayer models