LO3 UNDERSTAND THE CARDIOVASCULAR SYSTEM AND PHYSICAL ACTIVITY Flashcards
the structure of the heart and their roles.
atrium- taking in blood from either the heart or the body.
ventricle- the pumping chamber of the heart
valves- this prevent the backflow of blood
bicuspid valve- prevent the backflow of blood
tricuspid valve- prevents the backflow of blood
pulmonary valve- prevents backflow blood
aorotic valve- prevents backflow of blood
aorota- takes oxygenated blood away from the heart to the muscles
vena cava- brings deoxygenated blood back form the muscles to the heart
pulmonary artery- takes deoxiginated blood back from the heart to the lungs
pulmonary vein- takes oxyginated blood from the lungs to the heat
what is:
heart rate
stroke volume
cardiac output
heart rate- how many times our hearts beats for a minute.
average of 60-80 bpm
strock volume-the volume of blood pumped out of the heart in one contraction.
average stroke volume 50-100 ml
cardiac output- volume of blood pumped out of the heart per minute.
average-5L
what is:
heart rate
stroke volume
cardiac output
heart rate- how many times our hearts beats for a minute.
average of 60-80 bpm
strock volume-the volume of blood pumped out of the heart in one contraction.
average stroke volume 50-100 ml
cardiac output- volume of blood pumped out of the heart per minute.
average-5L
how do you calculate cardiac output
HRXSV=CO
((heart rate)X(stroke volume))
structure of blood vessels
arteries- carry blood away from the heart
arterioles- connect arteries to capillaries
capillaries- once cell thick, enables nutrients and gases to pass through
venules- connects to capillaries to veins
veins- vessels with a large lumen to prevent backflow of blood
tunica- layer or sheath
adventia/externia- outside layer of an artery or vein
media- middle layer of an artery or vein
intima- inside layer of the an artery or vein
lumen- the space inside of an artery, vein or capillary, through which the blood passes through.
