Cardiac muscle, found only in the heart, powers the action that pumps blood throughout the body. Its big features are endurance and consistency. Smooth muscle surrounds or is part of the internal organs. Smooth muscle is found in the digestive system, blood vessels, bladder, airways and, in a female, the uterus.keletal muscles can do a short, single contraction (twitch) or a long, sustained contraction (tetanus), and might ache after strenuous exercise. The stomach is an organ of the alimentary canal, a muscular tube that forms part of the digestive system. The wall of the stomach contains smooth muscle tissue.
In the U.S., a dried plum used to be called a prune. The California Plum Board requested a name change when research showed that prune had a negative impact. See Related Links.
Prunes are dried plums. They are highly nutritious, being rich in fiber, potassium, beta-carotene (vitamin A) and vitamin K. They are known for their natural laxative effects. This is caused by their high content of fiber and a sugar alcohol called sorbitol, which is found naturally in some fruit.