Question 1
According to the Frank-Starling law of the heart, the cardiac output is directly related to the
◦ thickness of the myocardium.
◦ venous return.
◦ size of the ventricle.
◦ heart rate.
◦ end-systolic volume.
Question 2
Which will increase the heart rate?
◦ only the application of acetylcholine to stimulation of the SA node
◦ both sympathetic stimulation and epinephrine stimulation of the SA node
◦ both sympathetic stimulation and acetylcholine stimulation of the SA node
◦ only epinephrine stimulation of the SA node
◦ only sympathetic stimulation of the SA node