Question

stimulation of the heart via the sympathetic nerves would
multiple choice
increase the force of ventricular contraction.
decrease stroke volume.
decrease heart rate.
not affect heart rate and force of contraction.
increase end - systolic volume.

Explanation:

The sympathetic nervous system is part of the autonomic nervous system. When it stimulates the heart, it releases neurotransmitters like norepinephrine. This leads to an increase in the force of ventricular contraction (positive inotropic effect), an increase in heart rate (positive chronotropic effect), and an increase in stroke - volume by decreasing end - systolic volume.

Answer:

A. Increase the force of ventricular contraction.