. Internal medicine; a work for the practicing physician on diagnosis and treatment, with a complete Desk index. man are: (a) Taenia Solium (Armed Tapeworm; PorkTapeworm).—This cestode was so called becauseit was supposed to exist as a solitary parasite inthe intestine. It is now known that two or moretapeworms may be present at the same time. Average length 3 metres; head globular, mm. in diameter and armed with adouble row of hooks; suckers hemispherical; neckslender and 5-10 mm. in length; proglottides 800-1000 in number whenmature and ready for detachment, 10-12 mm. in length by 5-6
. Internal medicine; a work for the practicing physician on diagnosis and treatment, with a complete Desk index. man are: (a) Taenia Solium (Armed Tapeworm; PorkTapeworm).—This cestode was so called becauseit was supposed to exist as a solitary parasite inthe intestine. It is now known that two or moretapeworms may be present at the same time. Average length 3 metres; head globular, mm. in diameter and armed with adouble row of hooks; suckers hemispherical; neckslender and 5-10 mm. in length; proglottides 800-1000 in number whenmature and ready for detachment, 10-12 mm. in length by 5-6 mm. inbreadth; genital pores alternate; uterus consists of a median trunk with7-10 lateral branches on each side, some of which again branch; eggs ovalwith very delicate shell; embrjonal shell thick, globular, of a pale yellow-ish color with radial stripes, mm. in diameter; the embryoarmed with six hooklets. This parasite when fully developed is foundexclusively in the small intestine of man. The embryos are voided withthe faeces but undergo no further development unless taken into the stom-. FiG. 294.— Taenia solium. 1,ovum; 2, segment, showing uterus;3, book; 4, head. 256 MEDICAL DIAGNOSIS. ach of a suitable animal, especially the hog or man himself. The embryoshells are then digested, the armed embryos are set free, and, finding theirway to various parts of the body, develop into the larvae or cysticerci. The geographical distribution of T. solium corresponds in generalwith that of the domestic hog and the customary use of raw or insuffi-ciently cooked pork. It is relatively commonin North Germany, rare in the United States,and for obvious reasons in Mussulman countriesand among the Jews. (b) Taenia Saginata {T. mediocanellata;Unarmed Tapeivorm; Beef Tapeworm).—Lengthvariable, up to 10 metres, even 36 metres; headcubical, mm. in diameter and withoutbooklets; suckers spherical and pigmented;neck long and about half the diameter of thescolex; proglotti
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectmedicine, bookyear192
