12 Jun DeVry BIO 255 – Which term refers to the period of time
Question
Question 6. Which term refers to the period of time during a cardiac cycle when contraction of a chamber occurs, and pressure within the chamber increases?
Filling
Systole
Repolarization
Diastole
Fibrillation
Question 7. The first heart sound (lubb) is closely associated with which of the events listed below?
Pulmonary semilunar valve closing
Aortic semilunar valves opening
Bicuspid valve closing
Tricuspid valve closing
Both C and D
Question 8. The T wave on the electrocardiogram corresponds with _____.
atrial depolarization
ventricular depolarization
atrial repolarization
ventricular repolarization
intra-atrial delay
Question 9. The volume of blood ejected from the left ventricle into the aorta each minute is called the _____.
cardiac output
cardiac input
stroke volume
heart rate
pulse pressure
Question 10. Stimulation of which component of the nervous system increases heart rate?
Sympathetic
Parasympathetic
Enteric
Somatic sensory
Pontine intrapneutic center
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