The therapist should not answer health care questions.
A. Pacemaker cells located in the atria fire before the pacemaker cells in the ventricles. B. It takes time for hormones to diffuse from the atria to the ventricles to trigger contraction. C.The electrical signal generated in the right atrium is delayed at the AV node before passing to the ventricles. D.The ventricular muscle cells contract more slowly than the atrial muscle cells.
It depend on were you're going at my sisiter had to do 75 but some colleges do 120.
I hope I helped please leave thanks
