(1) A nonspecific term for any condition that affects multiple arteries. (2) Polyarteritis nodosa, see there. (pol'Ä-ahr'tÄr-Ä«'tis) Simultaneous inflammation of a number of arteries. inflammatory and degenerative lesions of the arterial walls in a number of isolated locations.
The Border Collie comes in two coat varieties: rough or smooth. Both varieties are double coat and weather resistant and are close fitting and thick. The outer coat is either wavy or straight and coarse in texture. The under coat is dense, short, and soft. The rough coat variety has fur of medium length.
Coat. The Labrador Retriever is a double coat breed. The outer coat is straight, short, very dense, and hard in texture. The under coat is soft, weather-resistant, and protects this breed from cold, all types of ground cover, and water. The color of the coat comes in chocolate, black, and yellow.