释义 |
DictionarySeevasvarying hare
varying hare, any of several medium-sized hares, sometimes known as snowshoe rabbits, having white fur in winter and turning brownish in summer. They are 18 to 19 in. (45–48 cm) long and have very large back feet and relatively small ears for hares. Varying hares range over the northern half of North America. Most species feed on foliage, twigs, and other succulent vegetation in summer and on bark in winter. The varying hare is classified in the phylum ChordataChordata , phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals. ..... Click the link for more information. , subphylum Vertebrata, class Mammalia, order Lagomorpha, family Leporidae.vas aberrans
vas [vas] (pl. va´sa) (L.) vessel. adj., adj va´sal.vas aber´rans 1. a blind tube sometimes connected with the epididymis; a vestigial mesonephric tube.2. any anomalous or unusual vessel.va´sa afferen´tia vessels that convey fluid to a structure or part.va´sa bre´via short gastric arteries.vas de´ferens ductus deferens.va´sa efferen´tia vessels that convey fluid away from a structure or part.va´sa lympha´tica lymphatic vessels.va´sa prae´via the presentation, in front of the fetal head during labor, of the blood vessels of the umbilical cord where they enter the placenta.va´sa rec´ta re´nis long U-shaped vessels arising from the efferent glomerular arterioles of juxtamedullary nephrons and supplying the renal medulla. Called also arteriolae rectae renis.va´sa vaso´rum the small nutrient arteries and veins in the walls of the larger blood vessels.vas aberrans (1) Aberrant ductule; ductulus aberrans [NA6]. (2) (Superior aberrant ductule); (ductulus aberrans superior) [NA6]. (3) A nonspecific term applicable to any vessel with an anomalous course.vas aberrans1. A narrow tube varying in length from 112 to 14 in (3.8 to 35.6 cm), occasionally found connected with the lower part of the canal of the epididymis or with the commencement of the vas deferens.2. A vestige of the bile ducts sometimes found in the liver.See also: vas |