KINE 433 TEST 1 questions with verified answers
Pulmonary circuit Ans✓✓ --low pressure
-provides blood flow to the lungs
Systemic circuit Ans✓✓ --high pressure
-provides blood flow to all other tissues
oxygen rich blood Ans✓✓ --poor CO2
-blood from lungs, through heart and out to body
oxygen poor blood Ans✓✓ --CO2 rich
-blood from tissues, through heart back to lungs
Microcirculation Ans✓✓ --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 Ans✓✓ --arteries and veins
-outside of tissues primarily
-provide blood flow to and from tissues
-move large amount of blood
, cardiovascular adjustments to exercises Ans✓✓ --increase cardiac output
-redistribute cardiac output
-increase venous return
Heart Ans✓✓ --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 Ans✓✓ --hearts own circuit so it won't fatigue
SNS & PNS Ans✓✓ --find a balance and adjust as needed
-SNS: accelerator
-PNS: the break
Coronary arteries Ans✓✓ --provide blood flow to myocytes (heart muscle cells)
Capillaries in the heart Ans✓✓ --dense network in heart for O2 exchange
Heart- mitochondria Ans✓✓ --provides ATP for constant active muscles
Heart- nerves Ans✓✓ --innervated by the ANS
Pulmonary circuit Ans✓✓ --low pressure
-provides blood flow to the lungs
Systemic circuit Ans✓✓ --high pressure
-provides blood flow to all other tissues
oxygen rich blood Ans✓✓ --poor CO2
-blood from lungs, through heart and out to body
oxygen poor blood Ans✓✓ --CO2 rich
-blood from tissues, through heart back to lungs
Microcirculation Ans✓✓ --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 Ans✓✓ --arteries and veins
-outside of tissues primarily
-provide blood flow to and from tissues
-move large amount of blood
, cardiovascular adjustments to exercises Ans✓✓ --increase cardiac output
-redistribute cardiac output
-increase venous return
Heart Ans✓✓ --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 Ans✓✓ --hearts own circuit so it won't fatigue
SNS & PNS Ans✓✓ --find a balance and adjust as needed
-SNS: accelerator
-PNS: the break
Coronary arteries Ans✓✓ --provide blood flow to myocytes (heart muscle cells)
Capillaries in the heart Ans✓✓ --dense network in heart for O2 exchange
Heart- mitochondria Ans✓✓ --provides ATP for constant active muscles
Heart- nerves Ans✓✓ --innervated by the ANS
