Quizzes Flashcards
What initiates electrical depolarization through the heart?
SA node
Which chamber of the heart pumps blood to the lungs?
right ventricle
What does deoxygenated blood travel through from the heart to the lungs?
pulmonary artery
The blood vessel responsible for delivery of oxygen and nutrients to the anterior aspect of the left ventricle is known as what?
LAD (left anterior descending) coronary artery
What separates the left atria from the left ventricle?
mitral
What separates the right and left ventricles?
interventricular septum
Ventricular contraction on EKG
QRS complex
What do the heart sounds lub dub correspond to?
closing of heart valves
What structures attach the papillary muscles to the AV valves?
chordae tendineae
Which of these is an invasive technique used to aid in determining cardiac dysfunction?
A. auscultation
B. EKG
C. echocardiogram
D. angiogram
angiogram
Amount of blood pumped during one heartbeat
stroke volume (SV)
blood supply providing oxygen and nutrients to the adventitial layer of the aorta is provided by…?
vaso vasorum
Which layer of blood vessel provides the muscular contraction or relaxation needed for vasodilation and vasoconstriction?
tunica media
unique structures in veins that regulate venous return and prevent backflow
valves
Which of these does not control high blood pressure?
A. beta blockers B. coumadin C. diuretics D. ACE inhibitors E. all of the above
coumadin