KINE 433 TEST 1 || very Flawless.

Pulmonary circuit correct answers -low pressure -provides blood flow to the lungs Systemic circuit correct answers -high pressure -provides blood flow to all other tissues oxygen rich blood correct answers -poor CO2 -blood from lungs, through heart and out to body oxygen poor blood correct answers -CO2 rich -blood from tissues, through heart back to lungs Microcirculation correct answers -vessels too small to see -completely contained within a tissue -arterioles, capillaries, venues -regulates blood pressure and blood flow -regulates exchange of O2, CO2 and nutrients Macrocirculation correct answers -arteries and veins -outside of tissues primarily -provide blood flow to and from tissues -move large amount of blood cardiovascular adjustments to exercises correct answers -increase cardiac output -redistribute cardiac output -increase venous return Heart correct answers -primary function: acts as a pump 24 hours a day and meets needs regardless of situation -all cells need to contract in an organized function -SA node: generates AP spontaneously (pacemaker) -AV node: delays AP to allow ventricles to fill -gap junctions: electrically connect myocytes Coronary circulation correct answers -hearts own circuit so it won't fatigue SNS & PNS correct answers -find a balance and adjust as needed -SNS: accelerator -PNS: the break Coronary arteries correct answers -provide blood flow to myocytes (heart muscle cells) Capillaries in the heart correct answers -dense network in heart for O2 exchange