FLASHCARD WITH BEST SOLUTIONS
GRADED A+
The pericardium is divided into two layers: -
answer-the fibrous pericardium and serous
pericardium
Stroke volume is - answer-the volume of blood
pumped from the left ventricle during one
contraction
Stroke volume depends on - answer-Preload,
afterload, and contractility
Atrioventricular valves - answer-Tricuspid and
mitral valves located between the atria and
ventricle and cause S1 (first) heart sounds when
the close.
,Semilunar valves - answer-Aortic and pulmonic
valves located between ventricles and great
vessels and cause the S2 (second) heart sound
when they close.
Blood flows through the cardiac valves in this
order: - answer-tricuspid -> pulmonic -> mitral ->
aortic
The cardiac wall has 3 layers: - answer-
epicardium, myocardium, and endocardium
The pericardiuim is - answer-the sac
surrounding the heart
Preload - answer-how much the ventricles
stretch at the end of diastole
Afterload - answer-the amount of resistance
needed for the heart to open the aortic valve and
force blood volume into circulation
, Contractility - answer-the force of the heart,
independent of preload and afterload
Normal stroke volume is ____ mL per
contraction - answer-60-130 mL
Heart rate - answer-how many times the
ventricles contract each minute
Cardiac output is - answer-the volume of blood
that the heart pumps every minute
To calculate cardiac output (CO): - answer-
Multiply stroke volume (SV) by heart rate (HR)
Normal cardiac output (CO) is - answer-4 - 8
L/min
Central venous pressure (CVP) is - answer-the
blood pressure in the vena cava