The frequent anastomosis thus seen to take place between the branches of the radial, the ulnar, and the interosseous arteries in the hand, should be carefully borne in mind by the surgeon.
The stomach has been removed, to show the looping anastomosis of these vessels around the superior and inferior borders of the stomach.
When this vessel is tied, the collateral circulation will depend upon the anastomosis of the palmar arches, as in the case last mentioned.
The collateral circulation will then be carried on by the anastomosis of the following branches--viz.
When either the radial or ulnar arteries happen to be completely divided in a wound, both ends of the vessel will bleed alike, in consequence of the free anastomosis of both arteries in the hand.
This anastomosis occurs chiefly amongst the branches of the main arteries proper to either side.
The duct of the vesicula umbilicalis, dividing into two intestinal portions; and besides this duct are two vessels which are distributed upon the vesicula umbilicalis, and form a reticular anastomosis with each other.
Owing to the allantoic (anterior abdominal) vein having merely a foetal existence an anastomosis between the iliac veins and the portal system by means of the anterior abdominal vein is not established.
We sometimes, however, find cases of anastomosis among the stems of even the higher plants.
So long as this anastomosiscontinues bile will be formed, although the portal vein is occluded.
Notwithstanding the blocking of the portal, sufficient blood reaches the hepatic cells by the anastomosis between the hepatic artery and the interlobular veins--an anatomical connection demonstrated by Cohnheim and Litten.
By this method of anastomosis some relief is afforded when there is an obstruction in the portal circulation, which is such a common cause of turgescence of these veins, often resulting in permanent dilatation or hemorrhoids.
The most important anastomosis is that between the femoral and saphena and internal mammary and epigastric veins.
From the surface of the inner primary shell arise either solid spines or hollow tubes, which unite by the anastomosis of irregular branches and so form the outer secondary shell, often very incomplete and irregular.
The section of the veins above this anastomosis is seen already in Fig.
Within the brain, each artery being more or less terminal, there is no free anastomosis between adjacent vessels, with the result that if any individual artery is obstructed the vitality of the area supplied by it is seriously impaired.
The free anastomosis between the vessels entering into the formation of the circulus arteriosus (circle of Willis) ensures an abundant supply of blood to the brain.
Thoracic anastomosis between internal mammary and intercostals, with branches of axillary.
Anastomosis varies with the position of the ligature, but is very free between the various muscular branches of these vessels.
If possible, both these branches should be saved, as being important means of carrying on the anastomosis for the future support of the limb.
In such cases the anastomosis between branches of the coronary arteries is unusually free.
The cause, or causes, of aneurism by anastomosis are also unknown.
Finally, we are now in a condition to suspect wherefore it is that no one has yet said anything to the purpose upon the anastomosis of the veins and arteries, either as to where or how it is effected, or for what purpose.
Hence in the embryo, there is almost no use for the liver, but the umbilical vein passes directly through, a foramen or an anastomosis existing from the vena portae.
There is everywhere a mutual anastomosis and inosculation of the arteries with the veins, and they severally transmit both blood and spirit, by certain invisible and undoubtedly very narrow passages.
The second of these paragraphs describes the phenomenon of vascular anastomosis which, having already been more than once an object of our study, here reveals a new meaning.
So it is also with the anastomosis of the vessels which spring forth from the larger veins, seeking each other with their ends and coalescing, and thus providing the necessary basis for the leaf-skin or cuticle.
The branches of the coronary arteries upon the surface of the heart are, as a rule, all end arteries; that is, arteries which form no direct anastomosis with their neighbors.
Anastomosis between trunks of equal size is found where great activity of the circulation is requisite, as at the base of the brain, where the two vertebrals unite to form the basilar artery.
Collateral anastomosis of veins (Poirier and Charpy)] =The Lymphatic Circulation.
In one instance, where the cancer occupied the ileo-cæcal valve, I succeeded in making a lateral anastomosis between the ileum and ascending colon, after performing bilateral ovariotomy.
If, in the course of an ovariotomy or hysterectomy, the surgeon discovers a cancerous stricture in the colon or cæcum he should resect the affected section, if it permits of this treatment; otherwise lateral anastomosis should be performed.
It being removed, there appeareth a hole by the which the blood passeth freely from the vena cava to it and returneth by reason of this anastomosis that the blood in the veins may be animate.
Where theanastomosis is less free the process is more prolonged.
At this point the anastomosis between the superficial and deep veins of the leg is less free than elsewhere, so that the extra stress thrown upon the surface veins interferes with the nutrition of the skin (Hilton).
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "anastomosis" in a variety of sentences. We hope that you will now be able to make sentences using this word.
