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Circulatory System Blood Vessels

Circulatory System Blood Vessels. Blood vessels. __________. veins. artery. arterioles. venules. arterioles. __________. venules. __________. Arteries: Built for their job. ______________________ _______________________ _______________________

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Circulatory System Blood Vessels

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  1. Circulatory SystemBlood Vessels

  2. Blood vessels __________ veins artery arterioles venules arterioles __________ venules __________

  3. Arteries: Built for their job • ______________________ • _______________________ • _______________________ • provide strength for high pressure pumping of blood • elastic & stretchable • maintains blood pressure even when heart relaxes

  4. Major arteries aorta carotid= to head to brain & left arm to right arm to body pulmonaryartery pulmonaryartery=to lungs coronary arteries

  5. Coronary artery bypass bypass surgery

  6. Veins: Built for their job Blood flows toward heart • _______________________ • ______________________ • ______________________ • 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 Openvalve Closed valve

  7. Major Veins superiorvena cava= from upper body pulmonaryvein= from lung pulmonaryvein = from lung inferiorvena cava= from lower body

  8. Structure-function relationship • ____________________ • __________________ • __________________ __________________ ____________________________________ • ____________________________________ body cell waste CO2 O2 food

  9. Circulation of Blood Circulationto lungs • 2 part system • Circulation to lungs • ____________________ • ____________________ • ________________________________________ • Circulation to body • ________________________________________ • ________________________________________ • ________________________________________ lungs heart body Circulationto body

  10. Vertebrate circulatory system • 2 part system lungs arteryto lungs vein from lungsto heart heart vein from bodyto heart artery to body body

  11. Stops along the way… • Lungs • ____________________________________________ • Small Intestines • ____________________________________________ • Large Intestines • ____________________________________________ • Liver • ____________________________________________

  12. More stops along the way… • Kidneys • __________________________________________ • __________________________________________ • Bone • __________________________________________ • Spleen • __________________________________________

  13. ATP CO2 O2 Circulatory System & Homeostasis • Homeostasis • keeping the internal environment of the body balanced • ___________________________________ • ___________________________________ • ___________________________________ • Exercise • ___________________________ • need more ATP • bring in more O2 & food; remove more CO2 & waste out • Disease • _____________________________________ • need to work harder to bring in O2 & food & remove wastes food waste

  14. Have a heart?Ask Questions!!

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