. A treatise on practical anatomy: for students of anatomy and surgery . folds of mucous membrane, extending one-third aroundthe intestine, and about one-third inch in depth; theyare found in the second and third parts of the duodenum,throughout the jejunum, and gradually disappear in theupper part of the ileum. The valvulse conniventes arearranged spirally around the interior of the villi contain the intestinal termini of the lacteals;they are about four millions in number, and are scatteredthroughout the whole length of the small intestine; theyare minute, conical elevations,
. A treatise on practical anatomy: for students of anatomy and surgery . folds of mucous membrane, extending one-third aroundthe intestine, and about one-third inch in depth; theyare found in the second and third parts of the duodenum,throughout the jejunum, and gradually disappear in theupper part of the ileum. The valvulse conniventes arearranged spirally around the interior of the villi contain the intestinal termini of the lacteals;they are about four millions in number, and are scatteredthroughout the whole length of the small intestine; theyare minute, conical elevations, covered by columnarepithelium, and contain lacteals, blood-vessels, nerves, THK SMALL INTESTINE. 375 connective and lymplioid tissue. The follicles of Lieber-kiihn are simple mucous crypts, and are found through-out the mucous membrane of the small intestine; theyare similar in structure to the mucous Ibllicles of thestomach. Brunners glands are racemose glands im-bedded in the mucous membrane of the duodenum. Thesolitary glands are found most abundantly in the lower. Fig. 164.—Section of Intestine, showing the Villi. •The blood-vi-ssels. c, and the lacteMls. li. have heen injected. The blind ending, or .-1 - 1 _ . .. .t .1 1. t_ . 1 _- . 1 1^1 ti.^ —..«.. ....* ..1. ..r *u« simple loop of the bUic-k lactealblood-vessels. to be surrounded by tlie capillary uet-wurk of the part of the ileum ; they consist of a delicate, skeletal,interlacing fibrous structure, supporting lymplioid ele-ments. They are grayish bodies, ovoidal in form, andmeasure from two to three millimetres in diameter; theyare surrounded by villi and mucous follicles. Pcyerspatches are formed by aggregations of tlie solitary gland,forming oval patches twenty to thirty in number, foundprincipally in the lower part of the ileum; they are 376 PRACTICAL ANATOMY. placed opposite to the attachment of the mesentery. Thepatches are ahout three-fourths mch wide, one and one-half inches long, but vary bo
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanatomy, bookyear1891
