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That these methods are most secret was illustrated above by the activities of the soul in the body, of which man knows so little it is scarcely anything how, for instance, eye, ear, nose, tongue and skin sense things; how the stomach digests; how the mesentery elaborates the chyle and the liver the blood; how the pancreas and the spleen purify the blood, the kidneys separate it from impure humors, the heart collects and distributes it, and the lungs purify it and pass it on; how the brain refines the blood and vivifies it anew; besides innumerable other things which are all secret, and of which one can scarcely know.
Hence, as perfect nature does nothing in vain, and suffices under all circumstances, we find that the nearer the arteries are to the heart, the more do they differ from the veins in structure; here they are both stronger and more ligamentous, whilst in extreme parts of the body, such as the feet and hands, the brain, the mesentery, and the testicles, the two orders of vessels are so much alike that it is impossible to distinguish between them with the eye.
To give examples: if man had the disposing of the interiors of the eye for seeing, those of the ear for hearing, or the tongue for tasting, those of the skin for feeling, those of the heart for systolic action, of the lungs for breathing, of the mesentery to distribute the chyle, or of the kidneys for secretion, the interiors of the organs of generation for propagation, or those of the womb for perfecting an embryo, and so on, would he not pervert and destroy the ordered course of the divine providence in them in innumerable ways?
I, and indeed others, have sometimes found valves in the emulgent veins, and in those of the mesentery, the edges of which were directed towards the vena cava and vena portae.
For the greater part of its length the alimentary canal is attached to the inner dorsal surface of the abdominal cavity, or to the lower surface of the vertebral column. The fixing is accomplished by means of the thin membranous plate that we call the mesentery.
There is a possibility that in some of the cases of multiple spleens reported the organ is really single but divided into several lobes. Albrecht mentions a case shown at a meeting of the Vienna Medical Society of a very large number of spleens found in the mesogastrium, peritoneum, on the mesentery and transverse mesocolon, in Douglas' pouch, etc.
Some it sends to the blood, some to the lymphatic vessels, some to the lacteal vessels of the mesentery, and some down to the intestines. Then the chyle, conveyed through the thoracic duct from its cistern in the mesentery, is carried to the vena cava, and so to the heart.
It is at first very short, quite straight, and simple. But immediately behind the stomach we find at an early stage a horseshoe-shaped bend and loop of the gut, in connection with the severance of the alimentary canal from the yelk-sac and the development of the first mesentery.
The circulation of the blood in the liver differs from this general system; for the veins which drink up the refluent blood from those arteries, which are spread on the bowels and mesentery, unite into a trunk in the liver, and form a kind of artery, which is branched into the whole substance of the liver, and is called the vena portarum; and from which the bile is separated by the numerous hepatic glands, which constitute that viscus.
The entrails, like a gauntlet. The palate, like a mitten. The mesentery, like an abbot's The spittle, like a shuttle. mitre. The almonds, like a telescope. The hungry gut, like a button. The bridge of his nose, like a The blind gut, like a breastplate. wheelbarrow. The colon, like a bridle. The head of the larynx, like a The arse-gut, like a monk's vintage-basket. leathern bottle.
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