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.
A nut may be defined as a one-seeded fruit with a hard pericarp (ripened ovary wall). One or several nuts may sit in a cup-shaped structure called an involucre. In oaks (Quercus) the involucre is composed of small scales and the entire structure (involucre plus nut) is called an acorn.n chestnuts (Castanea) and beech (Fagus) the involucre is spiny, while in filberts and hazelnuts (Corylus), the involucre is leafy or tubular, depending on the exact species. This is a simplified classification of dry fruit types that follows most general botany textbooks and plant identification manuals.