. Elements of pathological anatomy. Anatomy. SECT. VIII.] LUMBRICOID WORM. 289 tremity. It is marked by numerous circular ridges, and by four longitudinal Fig. 64.* Fig. ^i Fig. 67.§ ^1 i. VOL. II. ^^' â lines,of which the dorsal and ventral are whitish, the two lateral ones dark and opaque. The head is tri- valvular, without wings or process- es; and the diges- tive tube, which runs in a straight course,terminates a short distance from the tail in a transverse fissure. The length of this worm is from three to twelve inches; its thick- ness about that of a goose-quill; and its color of a
. Elements of pathological anatomy. Anatomy. SECT. VIII.] LUMBRICOID WORM. 289 tremity. It is marked by numerous circular ridges, and by four longitudinal Fig. 64.* Fig. ^i Fig. 67.§ ^1 i. VOL. II. ^^' â lines,of which the dorsal and ventral are whitish, the two lateral ones dark and opaque. The head is tri- valvular, without wings or process- es; and the diges- tive tube, which runs in a straight course,terminates a short distance from the tail in a transverse fissure. The length of this worm is from three to twelve inches; its thick- ness about that of a goose-quill; and its color of a reddish brown, bordering upon yel- low. The male is much more slen- der than the female, from which it is readily distinguished by the singu- lar curve of its caudal extremity, and by its forked penis. This spe- cies of worm (Figs. 64, 65, 66, 67) exhibits a high degree of organiza- tion, being furnished with integu- ments, a muscular and digestive ap- paratus, and well-developed sexual organs, together, as is supposed by * Organs of the female ascaris: a, the exter- nal tunic; h 6, muscular fibres; d, mouth; e, (Esophagus; /, the alimentary tube ; Tilvi m, the generative organs. + Organs of the male ascaris : d, the mouth ; e, the oesophagus; h h, generative organs; /, the intestine; g, penis. t Penis of the ascaris lumbrico'ides magnified: a, the extremity : b, the base. § Head and mouth of the ascaris: a,bb, tu- bercles ; c, oval aperture. 37. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gross, Samuel D. (Samuel David), 1805-1884. Boston, James Dow
Size: 948px × 2637px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorgr, bookcentury1800, bookdecade1840, booksubjectanatomy
