File:The horse, its treatment in health and disease with a complete guide to breeding, training and management (1906) (14585634339).jpg

Identifier: horseitstreatm05axej (find matches)
Title: The horse, its treatment in health and disease with a complete guide to breeding, training and management
Year: 1906 (1900s)
Authors: Axe, J. Wortley
Subjects: Horses
Publisher: London, Gresham Pub. Co.
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries

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fibrous membrane (periosteum). Thisnot only covers the exterior of the bone, but serves as a bed in whichblood-vessels break up into small branches before entering it through the minute openings providedon the surfece. AVith thesesmall vessels fine fibres fromthe periosteum itself also passinto the tissue of the bone,and become connected withanother membrane lining itwithin termed the cndostcimi.Tlie several structuresmay separately sufter frominfiammation, but the in-timate connection existingbetween them renders it im-possible for one to sufter with-out the others being sooninvolved in the disease.Infiammation occurring in the periosteum is known as j^o^ostitis, inthe bone as ostitis, and in the lining membrane of the bone as endostitis. Periostitis.—This disease is mostly found to exist in the long bonesof the limbs of young animals when growth of the skeleton is most active,and the vessels of the membrane are highly charged with blood for thesupply of its nutritive requirements.
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Fig. ait).—Diagrammatic Transverse Section of Tibia and Fibula A, The two layers of the periosteum with blood-vessels, &c.B, Bone of the Tibia, c, Bone of the Fibula. D, Endosteum.E, Marrow. DISEASES OF BONES 209 It is especially frequent in the shin-bones of young raee-horses, whereit is commonly known among trainers and stablemen as sore shins . Periostitis may be acute or subacute. In the former case it soonspreads to the bone, and may cause portions to die and to slough. Intiie latter, which is the more common form of the disease in the horse,the action is of a more formative kind, and usually results in the thicken-ing of the periosteum and the formation of new bone. Two ffxctors are concerned in this destructive process:—1. Exudationis thrown out from the vessels within the bone into the miimte canalswhich they traverse. This continuing, the vessels are pressed upon bythe exuded matter, and the circulation of blood being thereby interferedwith the nutrition of the bone s

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