American Institute for Cancer Research Reaches Out to Older Americans. with Itâs Never Too Late to Lower Your Risk Campaign. WASHINGTON, DC âThis year will see an unprecedented surge in the number of Americans becoming eligible from Medicare, as the leading edge of the Baby Boom generation begins to turn 65.
Acetylcholine is also used as a neurotransmitter in the autonomic nervous system, both as an internal transmitter for the sympathetic nervous system and as the final product released by the parasympathetic nervous system.
Photo Credit XiXinXing/XiXinXing/Getty Images. Acetylcholine is a chemical messenger, a neurotransmitter, released by nerve cells in many parts of the peripheral nervous system. It controls the contraction of all skeletal or voluntary muscles, for instance. It also affects the contraction of smooth and cardiac muscle.he effect of acetylcholine on cardiac muscle, however, is very different from its effects on skeletal or smooth muscle. In the heart, acetylcholine activation of muscarinic receptors causes channels in the muscle membrane to let potassium pass.