. The comparative anatomy of the domesticated animals. Horses; Veterinary anatomy. TEE STOMACH. 469 a right extremity, continuous with the base of tlie abomasum, from wliich it is separated by a constriction unalngous to that of the anterior extieraity, but much less marked. /n<erwr.—Tliis ompurtment shows, in its interior, the two apertures placed at its extre- mities. The right orifice, opening into the abomasum, is much wider than the left, which with the rcticuluui. The cavity which these oriticci bring into communiciitiou with the aiijoining compartments, offers one of the
. The comparative anatomy of the domesticated animals. Horses; Veterinary anatomy. TEE STOMACH. 469 a right extremity, continuous with the base of tlie abomasum, from wliich it is separated by a constriction unalngous to that of the anterior extieraity, but much less marked. /n<erwr.—Tliis ompurtment shows, in its interior, the two apertures placed at its extre- mities. The right orifice, opening into the abomasum, is much wider than the left, which with the rcticuluui. The cavity which these oriticci bring into communiciitiou with the aiijoining compartments, offers one of the most curious arrangements met with in the viscera: it being tilled by unequally developed leavis of mucus membrane, which follow the length of the cavity. Thes,- leaver have an adiierent border attaMed either to the great curvature or to the faces of the organ, and a free concave bonkr turned towards the lesser curvature. They commence at the side of tiie orifice of the reticulum by denticulated ridges, between which are furrows, and wliich are prolonged from the base of the leaves to the entra^ice of the abomasum. At the latter aperture tliey disappear altogetiicr, rapidly diminishing in height. Their faces are studded by a multitude of very hard mamillary papilfse, resembling grains of millet, which are more developed and conical on some of the leaves than utherb. All these lamellar prolongations are far from being of th(! same extent; twelve to fifteen are so that their free border nearly reaches the lesser curvaturu of the viseus, between these principal leaves are others which, thou-h regularly enough arranged, are more or less narrower. At first there is remarked a secondary leaf, half the width of the chief ones, Fig. -m: SECTION OF THE WALL OF THE OMASUM OF THE SHEEP (FROM THE GREAT CURVATUBE, SHOWING THE ORIGIN OF THE LEAVES). P, peritoneum; m, the two musiilar layers; e, epithelium. 1, 1, Principal leaves at their origin; 2, secondary leaf; ?
Size: 2708px × 923px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcha, bookcentury1900, bookdecade1900, booksubjecthorses
