EXAM II NU 116 STUDY GUIDE WITH COMPLETE SOLUTIONS
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Course
NU 116
Institution
NU 116
EXAM II NU 116 STUDY GUIDE WITH
COMPLETE SOLUTIONS
three layers of the heart - Ans:-epicardium, myocardium, endocardium
Four chambers of the heart - Ans:-right atrium, right ventricle, left atrium, left ventricle
atrioventricular valves - Ans:-between atria and ventricles
tricuspid and mitral
...
what is a cardiac cycle - Ans:✔✔-the events that occur in the heart from the beginnig of one heartbeat
to the next
the number of cardiac cycles depends on the ________ - Ans:✔✔-heart rate
each cardiac cycle has what threee major sequential events? - Ans:✔✔-- diastole: heart is at rest
between contractions
- atrial systole: the atria contract, pushing blood into the ventricles
- ventricular systole: the ventricles contract, blood is forced into the aorta & pulmonary trunk
period of diastole` - Ans:✔✔-heart is at rest between contraction
atrial systole - Ans:✔✔-the atria contract, pushing blood into the ventricles
ventricular systole - Ans:✔✔-the ventricles contract, blood is forced into the aorta & pulmonary trunk
isovolumetric contraction - Ans:✔✔-2nd phase of cardiac cycle; all valves are closed, ventricles are full
and pressure rises inside the ventricle. When ventricular pressure is greater than Aortic/Pulmonary
trunk pressure (~80 mmHg), the SLV valves will open.
how much blood is in the ventricle during isovolumetric contraction? - Ans:✔✔-130 mL
ventricular ejection - Ans:✔✔-3rd phase; SL valves open, blood leaves the ventricles rapidly at first,
the aorta reaches peak systole/contraction pressure of 80mmHg.
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