Regents Biology Circulatory System Blood Vessels

Blood vessels __________ arterioles __________ venules __________ artery arteriolesvenules veins

Arteries: Built for their job  ________________  __________________________  _____________________  provide strength for high pressure pumping of blood  elastic & stretchable

Major arteries ___________ ________ ___________ __________= to lungs ________ __________= to head to brain & left arm to right arm to body coronary arteries

Coronary artery bypass bypass surgery

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

Major Veins ___________ __________= from lung _____________ ____________= from upper body __________ _________= from lung __________ _____________= from lower body

body cell O2O2 food waste CO 2 Structure-function relationship  ____________________  __________________  __________________ __________________ __________________ __________________  __________________ __________________

Circulation of Blood  2 part system  Circulation to lungs  ____________________  ____________________ ____________________  Circulation to body  ____________________ ____________________ heart lungs body Circulation to lungs Circulation to body

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

Stops along the way…  Lungs  ______________________ ______________________  Small Intestines  ______________________ ______________________  Large Intestines  ______________________ ______________________  Liver  ______________________ ______________________

More stops along the way…  Kidneys  _____________________ _____________________  Bone  _____________________ _____________________  Spleen  _____________________ _____________________

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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