Cardiovascular Flashcards
Carries oxygenated blood away from the heart
Arteries
Caries deoxygenated blood back to the heart
Veins
Connect veins and arteries
Capillaries
Carries oxygen and nutrients to cells and CO2 and waste away from cells
Blood
3 major types of blood vessels
Arteries, Veins, and Capillaries
Exchange of nutrients and byproducts
Capillaries
Contraction of the heart
Systole
Relaxation of the heart
Diastole
“Lub” sound
Systole
“Dub” sound
Diastole
Blood is being pumped out of heart and into arteries
Systole
What causes “Lub” sound
Closing of Atrium Ventricular Valves
Blood is flowing into the heart and filling the chambers
Diastole
What causes “Dub” sound
Closing of Semilunar Valves
Primary pacemaker of the heart
Sinoatrial Node
What should bpm be
60-100bpm
Pumps blood at 40-60 bpm
Atrioventricular Node
Last ditch effort of heart if Sinoatrial and Atrioventricular Node give out
Purkinje Fibers
Beat at 20-40 bpm
Purkinje Fibers
Veins -> Right Atrium -> Right Ventricle -> Lungs
Deoxygenated Blood
Arteries -> Lungs-> Left Atrium -> Left Ventricle -> Aorta -> Body
Oxygenated Blood
Exchanges oxygen and nutrients in the tissue for CO2 and waste
Capillaries
Cardiovascular System maintains body’s blood ______
pressure
Cardiovascular System regulates body _______
temperature
Maintains the body’s __
ph
Cardiovascular System transports _____
hormones
Force of the blood against the walls of the artery
Blood Pressure
Body temp rises; blood vessels ____ to allow heat to escape
dialate
Body temp decreases; blood vessels __ to prevent heat from escaping
constrict
Cardiovascular System help fight against ____
infections
Cardiovascular System aids in ____
digestion
Cardiovascular System assists in
repairing of damaged tissues
