Download The Circulatory System

The Circulatory System
By Ali Richter
By Ali Richter
Science
Mrs. Hunt
22nd
nd period
period
What is the main function?
• The main function of the circulatory system is to
transport vital materials throughout the body.
• Other functions include transporting blood and
oxygen from the lungs to various tissues of the
body, delivering nutrients to the cells, moving
waste to organs that can get rid of it, maintaining
body temperature, and fighting off infections.
What are the main organs?
• The main organs of the circulatory system are the heart,
blood, and blood vessels. The heart pumps the blood
through the blood vessels.
The Heart
• The heart is around the size of a clenched fist. It has four
chambers; the right ventricle, the right atrium, the left
ventricle, and the left atrium. Its job is to pump oxygen
rich to all living cells in the body.
The Blood Vessels
• The blood vessels are basically the arteries, veins, and
capillaries. The veins carry deoxygenated blood to the heart,
they are blue. The arteries carry oxygenated blood away from
the heart and to the cells of the body. The capillaries connect
the arteries and veins. They allow nutrients, gases, and waste
to move throughout the body.
The Blood
• The blood consists of red blood cells, white blood cells, and
platelets. Red blood cells carry oxygen and carbon dioxide. The
white blood cells help the body fight off germs. Platelets form
plugs (scabs) that stop us from bleeding to death.
What other systems does it work
with?
• The circulatory system works with all of the body systems. It works
with the muscular system by supplying blood and oxygen to the
muscles, which helps them function properly. It works with the
skeletal system since the red blood cells are made inside the bones.
The respiratory system supplies the blood (in the circulatory system)
with oxygen and in turn gets rid of carbon dioxide when you exhale.
The endocrine system secretes hormones into the circulatory
system. The digestive system breaks down the nutrients that are
absorbed into the bloodstream and transported all over the body.
The kidneys, which are in the excretory system, rid the blood of
waste. The skin, which is part of the integumentary system, is filled
with many blood vessels. The circulatory system gives nutrients to
the nervous system, and also takes the waste. The nervous system
controls little things in the circulatory system, like heart rate.
Bibliography
•
•
•
•
http://library.thinkquest.org/05aug/01883/functionofheart.htm
http://www.enotes.com/science/q-and-a/what-functions-circulatory-system191171
http://www.cliffsnotes.com/study_guide/Human-CirculatorySystem.topicArticleId-8741,articleId-8711.html
http://hes.ucfsd.org/gclaypo/circulatorysys.html
• Pictures
•
•
•
•
•
•
http://www.heart-valve-surgery.com/heart-surgery-blog/2008/11/25/ejectionfraction-normal-values/
http://science.howstuffworks.com/environmental/life/human-biology/heart.htm
http://beckycole-printtopixel.blogspot.com/
http://www.as.wvu.edu/~rbrundage/chapter10b/sld005.htm
http://ehumanbiofield.wikispaces.com/Arteries,+Capillaries+and+Veins
http://pleasanton.k12.ca.us/avhsweb/thiel/apbio/review/blood.html
The End!
Questions? Comments?