United States or British Virgin Islands ? Vote for the TOP Country of the Week !
From the left ventricle springs the largest arterial trunk in the body, over one-half of an inch in diameter, called the aorta. From the aorta other arteries branch off to carry the blood to all parts of the body, only to be again brought back by the veins to the right side, through the cavities of the ventricles. The Arteries.
Aortic narrowing or stenosis is a frequent occurrence in the aged and in arteriosclerosis when the aorta is involved. It is not a frequent single lesion in the young. If it occurs in children or young adults, it is likely to be combined with aortic regurgitation, meaning that the valve hay been seriously injured by an endocarditis.
An aneurysm may prove fatal by exerting pressure on important structures, by causing syncope, by rupture, or from the occurrence of suppuration. Pressure symptoms are usually most serious from aneurysms situated in the neck, thorax, or skull. Sudden fatal syncope is not infrequent in cases of aneurysm of the thoracic aorta.
Fatal hemorrhage had been avoided in this case by the formation of coagulum in the wound during the syncope immediately following the stab, possibly aided by extended exposure to cold. Sundry Cases. Sandifort mentions a curious case of coalescence of the esophagus and aorta, with ulceration and consequent rupture of the aorta, the hemorrhage proceeding from the stomach at the moment of rupture.
From no section does one get a better idea of the character and scope of the work than from that relating to the heart and arteries affections of the pericardium, diseases of the valves, ulceration, rupture, dilation and hypertrophy and affections of the aorta are very fully described. The section on aneurysm of the aorta remains one of the best ever written.
One communicates with the lungs, the other with the aorta; and the latter has hardly performed its distribution in the upper part of the body when it meets, as it descends, with a treacherous tube bringing to it a current of venous blood.
In 1880 Chiari said that while dissecting the body of a man who died of phthisis, he found a false aneurysm of the ascending aorta with a transverse rupture of the vessel by the side of it, which had completely cicatrized. Hill reports the case of a soldier who was stabbed with a bowie-knife nine inches long and three inches wide.
The ureter of the left side was very short. The left renal artery came from the bifurcation of the aorta and the primitive iliacs. The right kidney was situated normally, and received from the aorta two arteries, whose volume did not surpass the two arteries supplying the left suprarenal capsule, which was in its ordinary place. Displacements of the kidney anteriorly are very rare.
We are now informed that the charges of cavalry which the Austrian lancers and the Hungarian hussars had to sustain near Villafranca on the 24th with the Italian horsemen of the Aorta and Alessandria regiments have been so fatal to the former that a whole division of the Kaiser cavalry must be reorganised before it can be brought into the field main.
From the heart it is carried into the lungs, from them through the left ventricle of the heart into the aorta, and from this by its branches to viscera throughout the body and also to the kidneys.
Word Of The Day