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Regents Biology 2006-2007 Circulatory System Blood Vessels
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Blood vessels __________ arterioles __________ venules __________ artery arteriolesvenules veins
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Arteries: Built for their job ________________ __________________________ _____________________ provide strength for high pressure pumping of blood elastic & stretchable
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Major arteries ___________ ________ ___________ __________= to lungs ________ __________= to head to brain & left arm to right arm to body coronary arteries
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Coronary artery bypass bypass surgery
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Veins: Built for their job _______________________ ______________________ blood travels back to heart at low speed & pressure why low pressure? far from heart blood flows because muscles contract when we move squeeze blood through veins valves in large veins in larger veins one-way valves allow blood to flow only toward heart Open valve Blood flows toward heart Closed valve
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Major Veins ___________ __________= from lung _____________ ____________= from upper body __________ _________= from lung __________ _____________= from lower body
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body cell O2O2 food waste CO 2 Structure-function relationship ____________________ __________________ __________________ __________________ __________________ __________________ __________________ __________________
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Circulation of Blood 2 part system Circulation to lungs ____________________ ____________________ ____________________ Circulation to body ____________________ ____________________ heart lungs body Circulation to lungs Circulation to body
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Vertebrate circulatory system 2 part system heart lungs body artery to body artery to lungs vein from lungs to heart vein from body to heart
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Stops along the way… Lungs ______________________ ______________________ Small Intestines ______________________ ______________________ Large Intestines ______________________ ______________________ Liver ______________________ ______________________
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More stops along the way… Kidneys _____________________ _____________________ Bone _____________________ _____________________ Spleen _____________________ _____________________
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waste food Circulatory System & Homeostasis Homeostasis keeping the internal environment of the body balanced ___________________________________ Exercise ___________________________ need more ATP bring in more O 2 & food; remove more CO 2 & waste out Disease _____________________________________ need to work harder to bring in O 2 & food & remove wastes O2O2 ATP CO 2
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Regents Biology 2006-2007 Have a heart? Ask Questions!!
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