celiac axis


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Related to celiac axis: arteria celiaca, Coeliac axis

axis

 [ak´sis] (pl. ax´es)
1. a line through a center of a body, or about which a structure revolves.
the second cervical vertebra. adj., adj ax´ial.
2. the position of the cylindrical part of a lens, used for correcting astigmatism; the range of values is from 0° to 180°.
celiac axis celiac trunk.
dorsoventral axis one passing from the posterior to the anterior surface of the body.
electrical axis of heart the preponderant direction of current flow through the heart, a consequence of the electromotive forces within the heart. It may be computed on either an instantaneous basis or a mean basis.
frontal axis an imaginary line running from right to left through the center of the eyeball.
axis of heart a line passing through the center of the base of the heart to the apex.
instantaneous electrical axis the electrical axis of the heart determined at a given point in time.
lead axis the imaginary direct line between the two electrodes of the bipolar leads or between the positive electrode and the reference point of the unipolar leads.
mean electrical axis the average direction of the activation or repolarization process during the cardiac cycle; it may be determined for any deflection (P, QRS, ST-T) and in the frontal, transverse, or sagittal plane.
optic axis
1. a line connecting the center of the anterior curvature of the cornea (anterior pole) with that of the posterior curvature of the sclera (posterior pole).
2. the hypothetical straight line passing through the centers of curvature of the front and back surfaces of a simple lens.
phlebostatic axis a point located by drawing an imaginary line from the fourth intercostal space at the sternum and finding its intersection with an imaginary line drawn down the center of the chest below the axillae.
Phlebostatic axis.
sagittal axis an imaginary line extending through the anterior and posterior poles of the eye.
visual axis an imaginary line passing from the midpoint of the visual field to the fovea centralis.
Axes of the eye. From Dorland's , 2000.

ce·li·ac (arterial) trunk

[TA]
origin, abdominal aorta just below diaphragm; branches, left gastric, common hepatic, splenic.

celiac axis

The axis between the celiac artery and the abdominal aorta.
See also: axis
References in periodicals archive ?
Inferior pancreaticoduodenal artery aneurysms in association with celiac axis stenosis or occlusion.
The uncoincidental relationship between PAAAs and celiac axis stenosis/occlusion is well known and was first described by Sutton and Lawton in 1973.
To the best of our knowledge, this is the largest group of PAAA aneurysm cases associated with celiac axis lesions.
On careful observation, we observed that the celiac axis had four branches: (a) left gastric artery, (b) common hepatic artery, (c) splenic artery and (d) an aberrant branch, which took a course inferiorly towards the pancreas ('A' in Fig.1).
It entered the root of the mesentery 1cm from its origin, 5 mm inferior to the origin of the celiac axis. The duodenum, pancreas and the inferior layer of the transverse mesocolon had the root of the mesentery attached to them.
The pancreaticoduodenal artery is the main collateral pathway between the celiac axis and the superior mesenteric artery.
(1966), several authors reported the celiac plexus compression by both agents--the median arcuate ligament and the celiac axis (Rob, 1966; Stoney & Wylie; Bobbio et al.; Harjola & Lahtiharju, 1968; Tahery (1968); Carey et al.; Cormier & De La Fontaine, 1970; Olivier et al., 1970; Balmes et al., 1971; Lindner & Kemprud, 1971; Stanley & Fry; Tongio et al., 1971; Dreze et al.; Conti et al.; Beger et al., 1975; Joubaud et al.; Watson & Sadikali, 1977; Guibert et al., 1980; Daskalakis, 1982; Ghosn et al., 1982; Matesanz et al., 1982; Thevenet et al., 1985; Bacourt et al., 1984 and Roayaie et al.).
The syndrome of celiac trunk compression (or celiac axis compression syndrome) is a nosologic entity that has been recently introduced in the abdominal vascular pathology field based on the clinical-radiological observations by correlating abdominal symptoms caused by the compression of celiac trunk crura (Dunbar et al., 1965).
After exposure of the celiac axis, we analyzed the possible emission of inferior phrenic arteries from this vessel as well as site of origin.