cardiovascular Flashcards
(15 cards)
what do the cardiac muscles do during systole?
contract
which 2 valves open/close during systole?
AV valves close, semilunar open
(blood moves from ventricles to pulmonary artery & aorta)
what do the cardiac muscles do during diastole?
relax
what 2 valves open/close during diastole
AV open, semilunar close
(blood flows from atria to ventricles)
where can you find continuous capillaries?
muscles, skin, brain, lungs
where can you find fenestrated capillaries?
kidneys, intestines, endocrine glands, choroid plexus (thats a bonus one, don’t sweat it)
where to find sinusoidal capillaries?
liver, bone marrow, spleen
which ventricle has thicker walls?
left ventricle (has to pump blood to aorta)
what is venous return?
the flow of blood from the body’s veins back to the heart (right atrium)
systemic circulation is between…
left heart & body
pulmonary circulation is between…
right heart & lungs
coronary circulation is between…
coronary arteries/veins & heart
venous return factors
- skeletal muscle pump
- respiratory pump
- venoconstriction
- valves
Functions of blood
transport, defense, regulation, clotting
Components of whole blood
RBC, WBC, Platelets, Plasma
