. The anatomy of the domestic animals. Veterinary anatomy. THE SENSE ORGANS AND SKIN OF THE HORSE ridges, which subside in front and are fuseil with the sole; they are united with each other by the frog. For topographic purposes the wall niaj' be divided into an an- terior part or "toe" (Paries ungula' dorsalis), medial and lateral parts or "quar- ters " (Paries ungulte medialis, lateralis), and the angles or " heels " (Anguli parie- tales). It presents two surfaces and two borders. The external surface is con- vex from side to side and slopes obliquely from edge
. The anatomy of the domestic animals. Veterinary anatomy. THE SENSE ORGANS AND SKIN OF THE HORSE ridges, which subside in front and are fuseil with the sole; they are united with each other by the frog. For topographic purposes the wall niaj' be divided into an an- terior part or "toe" (Paries ungula' dorsalis), medial and lateral parts or "quar- ters " (Paries ungulte medialis, lateralis), and the angles or " heels " (Anguli parie- tales). It presents two surfaces and two borders. The external surface is con- vex from side to side and slopes obliquely from edge to edge. In front the angle of inclination on the ground plane is about 50° for the forelimb, .55° for the hind limb; on the sides the angle gradually increases and is about 100° at the heels. The curve of the wall is wider on the lateral than on the medial side, and the slope of the medial quarter is steeper than that of the lateral one.^ The siu-face is smooth and is crossed by more or less distinct ridges, which are parallel with the coronary border and indicate variations in the acti\'ity of the growth of the hoof. It is also marked by fine parallel strite, which extend from border to border in an almost rectilinear manner and in- ^.^1 dicate the direction of the horn tubes. ^i'f'' The internal siu"face is concave from side to side, and iiears about six hundred thin primary laminae, which extentl from the coronary groove to the basal border of the wall. Each bears a hundred or more secondary laminae on its sur- faces, so that the arrangement is pennate on cross-section. These horny laminse are continued on the inner surface of the bars, and dovetail with c(irrcs]ionding laminie of the the corium. The cor- onary border (;\Iargo coronarius) is thin. Its outer asjiect is covered by a layer of soft horn known as the periople (Limbus corneus); this appears as a ring-like prominence above and gradually- fades out l)elow; at the angle it forms a wide cap or bulb and blends
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectveterinaryanatomy
