Download The Circulatory System

2/22/12
The function and importance of the
circulatory system.
• Transportation of materials.
• Contains cells that fight infection.
• Helps stabilize the pH and ionic concentration
of the body fluids.
• It helps maintain body temperature by
transporting heat. This is particularly
important in homeothermic animals such as
birds and mammals.
Blood vessels.
• The three types of blood vessels are arteries, capillaries, and
veins.
• Each blood vessel consists of a layered wall surrounding a
central blood-containing space, or lumen.
• Blood vessels carry the blood throughout the body and supply
nutrients to everything.
Heart!
The route of blood 
through our heart.
Composition of blood.
Erythrocytes
• As you can see, the structures
and functions of erythrocytes,
are red blood cells, white
blood cells, and platelets.
Open vs Closed Systems
• An open circulatory system is found in all arthropods.
The blood is propelled through the body by a tubular
heart and collected in areas called sinuses.
• A closed circulation contains a heart connected to a
mass of connected blood vessels that allows the
blood to circulate throughout the body without
leaving the circulatory pathway.
Fish Circulation
• A fish has a closed circulatory system.
Amphibian Circulation
• Amphibians have
a closed
circulatory
system.
Reptile Circulation
• Reptiles have a closed system.
Mammal Circulation
• Mammals
have closed
circulatory
systems!
Hypertension
• Blood pressure is the force of blood pushing against
the walls of your arteries. High blood pressure means
that your blood is moving through your arteries with
a pressure higher than normal. The higher the
pressure inside your arteries, the higher your blood
pressure numbers will get.
Atherosclerosis
• A disease in which plaque builds up inside your
arteries. Then restricts blood flow.
References
•
•
•
•
•
•
•
•
•
http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20102/bio%20102%20lectures/circulatory%20system/ci
rculat.htm
http://www.ehow.com/about_5082107_function-blood-vessels.html
www.google.com
http://www.google.com/imgres?um=1&hl=en&sa=N&biw=1366&bih=541&tbm=isch&tbnid=1vtBn37cBWZyM:&imgrefurl=http://www.yourimt.com/atherosclerosisfacts.html&docid=Y2_16cBXvwXo1M&imgurl=http://www.y
ourimt.com/images/277_ATHERO_4.jpg&w=277&h=277&ei=bzNNTKoMKuDsgLjzsUD&zoom=1&iact=hc&vpx=336&vpy=218&dur=203&hovh=221&hovw=221&tx=86&ty=176&sig=1137605214
77347480570&page=1&tbnh=147&tbnw=147&start=0&ndsp=13&ved=1t:429,r:2,s:0
http://www.google.com/imgres?um=1&hl=en&sa=N&biw=1366&bih=541&tbm=isch&tbnid=1vtBn37cBWZyM:&imgrefurl=http://www.yourimt.com/atherosclerosisfacts.html&docid=Y2_16cBXvwXo1M&imgurl=http://www.y
ourimt.com/images/277_ATHERO_4.jpg&w=277&h=277&ei=bzNNTKoMKuDsgLjzsUD&zoom=1&iact=rc&dur=94&sig=113760521477347480570&page=1&tbnh=147&tbnw=147&start=0&ndsp
=13&ved=1t:429,r:2,s:0&tx=108&ty=52
http://en.wikipedia.org/wiki/Hypertension
http://en.wikipedia.org/wiki/Red_blood_cell
http://www.google.com/imgres?imgurl=http://www.medicalook.com/systems_images/Erythrocytes_large.jpg&imgrefurl=ht
tp://www.medicalook.com/human_anatomy/organs/Blood.html&h=664&w=925&sz=52&tbnid=Vz11hIgtxIclM:&tbnh=90&tbnw=125&zoom=1&docid=pMyvw7y5U8ikM&hl=en&sa=X&ei=tjRNT7XKGIrDgAey6vHnCA&ved=0CFoQ9QEwBQ
http://www.google.com/imgres?um=1&hl=en&sa=N&biw=1366&bih=541&tbm=isch&tbnid=daQk1llVPdg0_M:&imgrefurl=h
ttp://isisthescientist.com/2010/03/01/the_controversy_of_surgically/&docid=qRU9kcYEe7coNM&imgurl=http://scienceblog
s.com/isisthescientist/blood%252520path.gif&w=450&h=332&ei=5TVNT8GXGbDLsQLM44ki&zoom=1&iact=hc&vpx=123&v
py=230&dur=153&hovh=193&hovw=261&tx=169&ty=189&sig=113760521477347480570&page=1&tbnh=159&tbnw=216&
start=0&ndsp=11&ved=1t:429,r:6,s:0