UNIT 3 Flashcards
what are the major functions of Cardiovascular system?
transport O2 and nutrients
Removes Co2 and other waste
transport hormones and other molecules
regulate body temperature
maintain acid-based balance
What systems does the cardiovascular system work with?
pulmonary system through cardiorespitory and cardiopulmonary
What makes up the CV system?
channels or tubes (blood vessels)
pump (heart)
fluid medium (blood/plasma)
arteries function
caries blood away from the heart
arterioles function
smallest arteries
resistance vessels: greatest ability to regulate pressure
capillaries function
smallest and most numerous vessels that allow for exchange between blood tissues
veins function
blood travels towards heart
exception: pulmonary vein
venules function
small vessels that connect to capillaries
pulmonary circuit
right side of heart
pumps deoxygenated blood and returns oxygenated
low pressure system
systemic circuit
left side of heart
pump oxygenated blood and returns deoxygenated
high pressure bc it’s long/large
where does the right atrium receive blood from?
superior vena cava
inferior vena cava
coronary sinus
what does the right atrium eject blood through?
tricuspid valve
What does the right atrium eject blood to?
right ventricle
Where does the right ventricle receive blood from?
right atrium
what does the right ventricle eject blood through?
pulmonic valve
what does the right ventricle eject blood to?
pulmonary artery and pulmonary circulation
where does the left atrium receive blood from?
pulmonary veins
what does the left atrium eject blood through?
mitral (bicuspid) valve
what does the left atrium eject blood to?
left ventricle
where does the left ventricle receive blood from?
left atrium
what does the left ventricle eject blood through?
aortic valve
What does the left ventricle eject blood to?
aorta and systemic circulation
AV valves
separates atria from ventricles
allow movement of blood from atria to ventricles
semilunar valves
allow movement of blood from ventricles to aorta and pulmonary artery