Chapter 13- Heart and Circulation Flashcards
Interruption of blood to brain for 8 seconds
unconsciousness
Result of lack of O2 (cardiac arrest) for 6 minutes.
Brain death
L and R atria receive ________ blood and pump it into ________.
venous; ventricles
______ Artrium and _______ ventricle are apart of systemic circulation.
_______ Atrium and ________ ventricle are apart of pulmonary circulation.
Left; left –> systemic
Right; right –> pulmonary
Systemic circulation
left atrium (oxygenated blood) –> left ventricle –> aorta –> arteries –> arterioles —> peripheral (systemic) capillaries –> (deoxygenated blood) –> veins –> vena cava –> right atrium
Pulmonary circulation
right atrium (deoxy blood) –> right ventricle –> pulmonary artery –> pulmonary arterioles –> pulmonary capillaries for gas exchange (oxygenated blood) –> pulmonary vein –> left atrium
The flow rate through systemic circulation _______ flow rate through pulmonary circulation.
equals
Cardiac valves allow the circulation to be ________.
one-directional
Atrioventricular valves (AV)
Tricuspid valve and Mitral (bicuspid)
Allow blood to flow from atria to ventricles
Semilunar valves
Aortic and pulmonic
Allow blood to leave the ventricles to enter either pulmonary or systemic circulation
What is it called when ventricles contract
Systole
Systole
ejection of blood to arteries when ventricles contract
What is it called when ventricles relax
diastole
Diastole
filling of blood in the ventricles from the atria.
When ventricles relax
During diastole ___ blood is ejected out of heart
no