It contains the descending thoracic aorta, the greater and lesser azygos veins, the esophagus, the thoracic duct, etc.
After death about one-fourth of the blood of the body is found in the azygos system, and points dependent in the body, which blood, too, it is impossible to draw.
The tertiary azygos receives the following: the fifth, sixth and sometimes the seventh intercostal veins; the lower end of the lower left superior intercostal vein; and the left bronchial vein.
The minor azygos vein receives the following: the tertiary azygos vein; the lower five left intercostal veins; the small left mediastinal veins; the lower left esophageal veins.
The azygos veins collect all the blood from the side walls of the body and form a perfect collateral circulation between the superior and inferior caval systems, and thoroughly equalizes the blood pressure all over the body.
Eckley reports an instance of supernumerary lobe of the right lung in close connection with the vena azygos major.
Of the few exceptions to this rule, he considers the valves of the jugular veins as in process of becoming obsolete, and the rudimentary azygos valves as a recent development.
Clevenger points out that the intercostal veins, which carry blood almost horizontally backward to the azygos veins and which would run vertically upward in quadrupeds, possess valves.
The azygosorgan presents as a symmetrical unity, and the duplex organ as a symmetrical duality.
The Cuvierian veins = the vena cava superior of the higher type; the posterior cardinal is represented by the azygos vein in the Rabbit.
The attention, of the student is called to the small azygos vein (az.
It is interesting to remark that his statement that the veins or sinuses of the spinal cord terminate in the vena azygos was verified by the subsequent researches of G.
The vena azygos also, and the jugular veins, have contributed to add to the confusion of his description, and to render his angiology the most imperfect of his works.
Though in a few Mammalia both the posterior vertebrals persist, a transverse connection is usually established between them, and the one (the right) becoming the more important constitutes the azygos vein (fig.
Stage after the left vertebral vein has disappeared; the right vertebral remaining as the azygos vein.
As in Dasypus, but not as in Tatusia, which is in so many other respects divergent from these genera, the lungs have an azygos lobe.
The Edentates, at any rate the American forms, have a double vena cava posterior and no azygos vein.
There are no caeca and no azygos lobe to the lung.
Through the crura pass the splanchnic nerves, and in addition to these the left crus is pierced by the vena azygos minor.
There are three large openings in the diaphragm; the aortic (k) is behind the middle arcuate ligament and transmits the aorta, the venaazygos major, and the thoracic duct.
The ducts of Cuvier represent the precavae (venae cavae superiores) of mammalia and the postcardinals the mammalian azygos veins.
Previous to entering the liver the postcava gives off the two posterior cardinal or azygos veins, which continue cephalad, receiving tributary segmental veins from the body-walls and reach the sinus venosus by joining the subclavian veins.
The vertebral and segmental venous system, representing the azygos veins of the mammalia, is very rudimentary (Figs.
The vertebral vein represents the rudimentary proximal segment of the postcardinal vein corresponding to the mammalian azygos vein.
Connection of the postcaval and precaval systems by the azygos veins representing the proximal segments of the embryonic postcardinal veins (Fig.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "azygos" in a variety of sentences. We hope that you will now be able to make sentences using this word.
