Muscular arteries are arteries with smaller lumen containing more smooth muscle and are capable of vasoconstriction and vasodilation. They branch from the elastic arteries and distribute blood to the various regions of the body.
â¢ JASPER (noun). The noun JASPER has 1 sense: 1. an opaque form of quartz; red or yellow or brown or dark green in color; used for ornamentation or as a gemstone. Familiarity information: JASPER used as a noun is very rare. JASPER (noun). The noun JASPER has 1 sense: 1. an opaque form of quartz; red or yellow or brown or dark green in color; used for ornamentation or as a gemstone. Familiarity information: JASPER used as a noun is very rare.
Jasper Geological Description: Jasper is a microcrystalline variety of Quartz, a silicon dioxide mineral with a hardness of 6.5 to 7. The name Jasper is derived from a Greek word meaning âspotted stoneâ. It is found all over the world, including large deposits in India, Russia, Brazil, France, Germany and the USA.