Epinephrine

A) increases the heart rate but decreases the stroke volume.
B) causes vasodilation of coronary blood vessels.
C) causes vasoconstriction of blood vessels in skeletal muscle.
D) decreases red blood cell count.
E) decreases the force of contraction.

Epinephrine

Hormone (amino acid derivative) similar in structure to the neurotransmitter norepinephrine; major hormone released from the adrenal medulla; increases cardiac output and blood glucose levels; also called adrenaline.

Coronary Blood Vessels

Arteries and veins that provide blood supply to the heart muscle.