Sympathetic stimulation increases contractile strength by:
A) decreasing sodium permeability
B) increasing calcium permeability
C) closing funny channels
D) cause the resting potential to become more negative
E) increasing threshold

Question

Quizplus · Accepted Answer

Sympathetic stimulation increases contractile strength by increasing calcium permeability. Calcium influx results in stronger contractions by binding to troponin and promoting cross-bridge formation between actin and myosin.

Sympathetic Stimulation Increases Contractile Strength By