Sympathetic innervation to the heart...
A. Includes preganglionic neuronal cell bodies in the gray matter of spinal cord segments T6 thru T12
B. Functions to slow the heart rate and reduce the force of cardiac contraction
C. Includes direct visceral nerves transporting preganglionic axons to sympathetic ganglia in the wall of the heart
D. Includes postganglionic neuronal cell bodies contained in the cervical chain ganglia and thoracic chain ganglia T1 thru T3