atlantic part of vertebral artery
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vertebral artery segments — the four segments, V1–V4, into which the vertebral artery is divided clinically. The V1 segment corresponds to the prevertebral part (pars prevertebralis arteriae vertebralis) of the artery; V2 corresponds to the cervical part (pars cervicalis… … Medical dictionary
part — A portion. SYN: pars [TA]. abdominal p. of aorta SYN: abdominal aorta. abdominal p. of esophagus [TA] the portion of the esophagus from where it passes through the diaphragm to the stomach. See … Medical dictionary
Artery — A vessel that carries blood that is high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated. The resultant form of… … Medical dictionary
pars — SYN: part. [L. p. (part ) a part] p. abdominalis aortae [TA] SYN: abdominal aorta. p. abdominalis ductus thoracici [TA] SYN: abdominal part of thoracic duct. p. abdominalis esophagi [TA] SYN: abdominal part of esophagus. p. abdomina … Medical dictionary
pars atlantica arteriae vertebralis — [TA] atlantic part of vertebral artery: the third part of the artery, which winds behind the lateral mass of the atlas to lie in a groove on the upper surface of the posterior arch of the atlas … Medical dictionary
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
bird — birdless, adj. /berrd/, n. 1. any warm blooded vertebrate of the class Aves, having a body covered with feathers, forelimbs modified into wings, scaly legs, a beak, and no teeth, and bearing young in a hard shelled egg. 2. a fowl or game bird. 3 … Universalium
Bird — /berrd/, n. Larry, born 1956, U.S. basketball player. * * * I Any of the warm blooded, beaked vertebrates of the class Aves, including more than 9,600 living species. A covering of feathers distinguishes birds from all other animals. Birds have a … Universalium
Shark — Taxobox name = Shark fossil range = Late Devonian Recent image width = 250px image caption = Grey reef shark, Carcharhinus amblyrhynchos regnum = Animalia phylum = Chordata subphylum = Vertebrata classis = Chondrichthyes subclassis =… … Wikipedia
