The people's common sense medical adviser in plain English, or, Medicine simplified . 7 ABSORPTION. EptthduilCtUt IfuCUus 51. Absoijition is the vital fiiiictiou by v\ hich nutritive mate-rials are sek-cted and imbibed for the sustenance of the , like all other functional processes, employs agents toeffect its purposes, and the villi of the small intestine, with theirnumberless projecting organs,are specially employed toimbibe fluid substances: thisthey du with a celerity com-mensurate to the importanceand extent of their are little vascularprominences of the mucousm
The people's common sense medical adviser in plain English, or, Medicine simplified . 7 ABSORPTION. EptthduilCtUt IfuCUus 51. Absoijition is the vital fiiiictiou by v\ hich nutritive mate-rials are sek-cted and imbibed for the sustenance of the , like all other functional processes, employs agents toeffect its purposes, and the villi of the small intestine, with theirnumberless projecting organs,are specially employed toimbibe fluid substances: thisthey du with a celerity com-mensurate to the importanceand extent of their are little vascularprominences of the mucousmembrane, arising from theinterior surface of the smallintestine. Each villus hastwo sets of vessels, viz: (1.)The blood-vessels, which, bytheir frequent blending, fonna complete net-work just be-neath the external ei>ithelium; they unite at the base of thevillus, forming a minute vein, which is one of the sources ofthe i»ortal vein. (2.) In the center of the villus is another ves-sel, with tliinner and more transparent walls, which is the com-mencement of a lacteal. 3 • (49). Villi of the Btnall Intestine largelymagniUed. 50 COMMON SENSE MEDICAL AD^^SEK. 58. The liacteah Jngiuate in the walls of the alimentarycanal, are very numerous in the small intestine, and, passingbetween the laminae of the mesentery, they terminate in thereceptaculutn chyli. The mesentery, consists of a double layerof cellular and adipose tissue. It incloses the blood-vessels,lacteals, and nerves, of the small intestine, together with its ac-cessory glands. It is joined to the posterior abdominal wall by anarrow origin; anteriorly, it is attached to the whole length ofthe small intestine. The lacteals are known as the absorbentsof the intestinal walls, and after digestion is accomplished, arefound to contain a white, milky fluid, called chyle. The chyledoes not represent the entire product of digestion, but only thefatty substances suspended in a- serous fluid. 59. Formerly, it was supposed that the
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Keywords: ., bookcentury180, bookdecade1870, booksubjectmedicine, bookyear1876
