Similarly the delivery (anadosis) of nutriment to the liver from the food-canal viâ the mesenteric veins may have its direction reversed.
In his description of the organs and process of nutrition, absorption by the veins of the stomach is correctly noticed, and the union of the mesenteric veins into one common vena portæ is pointed out.
In Mammalia the superior mesentericartery arises from the vitelline artery, which may probably be regarded as a primitive caeliaco-mesenteric artery.
As however the intestine becomes more and more developed, it acquires a distinct venous system, and its blood is returned by veins which form a trunk, the mesenteric vein (fig.
Both the vitelline arteries and veins now pass to and from the body of the chick as single trunks, assuming more and more the appearance of being merely branches of the mesenteric vessels.
It soon receives a mesentericvein bringing the blood from the viscera, which is small at first but rapidly increases in importance.
The remainder of the venous system is formed in the embryo of the vitelline and allantoic veins, the former being eventually joined by the mesenteric vein so as to constitute the portal vein.
The mesenteric glands are generally unaffected, but in the Breslau epidemic just referred to they were not infrequently found moderately swollen.
Suppuration of the mesentericglands is a rare complication, mentioned especially by Wyss and Bock.
A very similar condition of the mesenteric glands is probably due to a like cause.
They were not found in the spleen in the cases of the longest duration, and only scantily in the mesenteric glands.
In Tabes mesenterica (tuberculosis of the mesenteric glands), usually occurring in children, the glands of the mesentery and retroperitonaeum become enlarged, and either caseate or occasionally suppurate.
These lacteal vessels, as was before observed, pass through the mesentery, and their contents seem to undergo some important change in the mesenteric glands.
The mesenteric glands are occasionally enlarged and tuberculous; likewise the glands near the liver.
Tubercle bacilli of the bovine type obtained from the mesenteric glands of a sheep, hog, and cow were similarly transformed in their morphological appearance after being passed through a series of cats and recovered on dog serum.
The disease of the stomach, intestines, and mesenteric glands is very probably the result of feed infection.
This bacillus was obtained from the mesenteric gland of a boy.
The mesenteric lymph glands are usually somewhat enlarged and appear watery on section.
The bacillus, which has been invariably demonstrated in the intestinal lesions and mesenteric lymph glands in this disease, is a rod about 2 to 3 microns long and 0.
Mohler also inoculated subcutaneously a 1-year-old heifer with a culture derived from the tuberculosismesenteric gland of a boy 4 years of age.
The partial paralysis of the bowel, which is brought on by the embolism and thrombosis of the mesenteric arteries, forms in great part the chief and leading feature of the series of symptoms known as the “colic” of horses.
In addition to the mesenteric connective tissue, all the arterial coats, and especially the tunica media, generally take part in this induration.
This general configuration is principally due to the free and moveable situation of the anterior mesenteric artery.
The favorite seat of the worm-aneurism is the trunk of the anterior mesenteric artery, directly at its origin from the abdominal aorta.
The mesenteric example is particularly fine, whilst that from the omentum is undergoing calcareous degeneration.
Its termination by rupture is extremely rare, the aneurisms of the abdominal aorta being more disposed to rupture than those of the anterior mesenteric artery.
All of them, with the exception of fatty matters, pass directly into the blood, traversing the mesenteric and Portal veins, to reach the liver.
These small veins, or capillaries, lead at length to the Mesenteric veins, which pour into the Portal vein, by which the blood proceeding from them is conducted into the Liver.
In incipient and chronic cases of Scrofula, consumption, and mesenteric disease, it is possible that Mercurials may act yet in another way.
They are always found in that part of the intestine which is furthest from the mesenteric attachment.
In that case an actual division into a mesenteric and mesocolic segment would have been effected.
Hence it will be found that the first branches derived from the right side of the primitive superior mesenteric artery, supplying the duodenum and pancreas (Art.
In the next place it is desirable to clearly understand the vascular supply of the intestine before and after rotation and the final relation of the superior mesenteric artery to the transverse portion of the duodenum.
Not only the pancreatico-duodenalis inferior, but all the remaining branches to the small intestine are derived from the right side of the superiormesenteric artery.
Hence this portion of the small intestine consists of a dextro- and sinistro-mesenteric segment.
Inasmuch as the inferiormesenteric vessels originally passed to the descending colon between the layers of the mesocolon they will now apparently be placed beneath the (secondary) parietal peritoneum of the left lumbar region.
The inferior mesenteric vessels are found near the left margin of the entrance into the fossa.
This connection is usually from the start larger on the left side and connects with the left omphalo-mesenteric vein just at the point where the same is about to be continued into the ductus venosus.
Diagrammatic representation of the arteries of the alimentary canal in the first stage of intestinal rotation, showing relation of superior mesenteric artery to the transverse portion of the duodenum.
The two forks embrace between them the omphalo-mesenteric or vitelline veins just before they empty into the sinus venosus of the heart.
In this membrane are some 150 glands about the size of an almond, called mesenteric glands.
Having been acted upon by the mesenteric glands, and passed through them, the chyle flows onward until it is poured into a dilated reservoir for the chyle, known as the receptaculum chyli.
It is not unlikely that the mesenteric glands may intercept, like a filter, material which, if allowed to enter the blood, would disturb the whole body.
Sometimes it is connected with consumption; sometimes it affects the viscera of the abdomen, and particularly the mesenteric glands, in a manner similar to consumption in the lungs.
The mesenteric glands are enlarged, and engorged with yellow serous fluid.
The parts of the mesoderm at which the first traces of them are found are usually called the middle or mesenteric plates.
An important fact with regard to the tubercular processes in the digestive organs lies in the ready response to treatment shown by many cases of peritoneal or mesenteric invasion, particularly in the young.
The intestinal mucous membrane, the peritoneum and the mesenteric glands are the chief sites of tubercular infection in the digestive organs.
When present, they generally involve the peritoneum or the mesenteric glands.
Trace the dorsal aorta backwards, and note that it gives rise to the cœliaco-mesenteric artery about midway between its origin and the origin of the first pair of renal arteries.
A similar and smaller nervous tangle, bearing an inferior mesenteric ganglion, lies near the inferior mesenteric artery.
Separate Spigelian lobe from stomach, and look for vagus nerve descending by oesophagus, solar plexus around the superior mesenteric artery, and thrown up very distinctly by the purple vena cava inferior beneath, and the splanchnic nerve.
In front, immediately dorsal to the spleen, is a variable quantity of lymphoidal tissue, which must be very carefully cleared to see the superior mesenteric and coeliac arteries.
This origin of the coeliaco-mesenteric artery a little to the left, is the only asymmetry (want of balance) in the arterial system of the frog, as contrasted with the very extensive asymmetry of the great vessels near the heart of the rabbit.
The bullet had knocked the superiormesenteric artery completely off the aorta exposing a large area.
Shires was able to dissect around the area sufficient to allow us to gain control of the aorta, superior mesenteric artery and the vena cava and the placement of vascular clamps across these vessels in order to stop the hemmorhage.
Thus, after an injection of one of these albumoses, the mesenteric vessels are always strongly congested, accompanied frequently by the appearance of a bloody serum in the peritoneal cavity.
The mesenteric artery differs in some respects from the radial, but in the main, the changes brought about by age are the same.
As has been shown, arteriosclerosis of the splanchnic vessels not infrequently occurs, and an embolus or thrombus may completely occlude the superior mesenteric artery.
An autopsy on a case which for many years had attacks of abdominal pain and cramp-like attacks, with high blood pressure and heart hypertrophy, showed extensive sclerosis of the abdominal aorta, superior mesenteric and iliacs.
The pains are most probably due to the spasm of the intestinal muscles, and some think they are located in the sympathetic and mesenteric plexuses.
Compression of the superior mesenteric artery or the celiac axis in dogs raises the blood pressure measured in the carotid artery for a period of at least an hour.
This septum or éperon is formed by the mesenteric side of the two ends of the bowel.
The inferior mesenteric artery crosses the left one, while to the outside of both, and behind them, lie the sympathetic and obdurator nerves.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "mesenteric" in a variety of sentences. We hope that you will now be able to make sentences using this word.
