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P. Mishra, D. Leach (1983)
Extrinsic and intrinsic veins of the equine hoof wall.Journal of anatomy, 136 Pt 3
E. Roberts, Ricardo Ochoa, P. Haynes (1980)
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Summary The venous organisation of the dermal lamellae of the equine hoof wall of 18 pairs of forelimb hooves from clinically healthy horses was studied using plastic vascular corrosion casts, and scanning electron microscopic and histological techniques. A consistent pattern of venous organisation was observed in the dermal lamella of the toe, quarter and heel regions. The lamellar corium had an extensive interconnecting capillary network which drained into axially located veins of the primary dermal lamella. Many of the capillaries had a proximodistal orientation and most of those located at the interior third of the dermal lamella exhibited focal capillary enlargements. It was suggested that these enlargements may function to influence blood flow in normal conditions and in laminitis. Résumé L'organisation veineuse des lamelles dermiques du pied du cheval a étéétudiée sur 18 paires de sabots antérieurs provenant de chavaux cliniquement sains. Pour ce faire, on employa des moulages plastiques vasculaires, un microscope électronique à balayage et des techniques histologiques. Un aspect régulier de l'organisation veineuse fut observé sur les lamelles dermiques de la pince, des quartiers et des talons. Le chorion lamellaire dispose d'un réseau capillaire qui draine vers des veines axiales les veines des lamelles dermiques primaires. Bien des capillaires ont une orientation proxime distale; pour la plupart ceux situés dans le tiers interne des lamelles dermiques montrent des élargissements capillaires focaux. On pense que ces élargissements ont un rôle dans l'écoulement sanguin normal et dans la fourbure. Zusammenfassung Die venöse Versogung der Lederhautlamellen des Pferdehufs werden an 18 Hufpaaren von Vorderbeinen klinisch gesunder Pferde untersucht und zwar mit Hilfe von Plastik‐Gefässausgüssen, Scanning‐Elektronenmikroskopie und Histologie. Es wurde eine regelmässiges Muster der venösen Organisation in den Lederhautlamellen von Zehe, Seitenwand und Ballen beobachtet. Das lamelläre Corium zeigt ein ausgedehntes, unter sich kommunizierendes Kapillarnetz, das in axial lokalisierte Venen der primären, dermalen Lamellen mündet. Viele der Kapillaren sind in einer proximo‐distalen Richtung orientiert und die meisten, die im inneren Drittel der dermalen Lamellen liegen, weisen herdförmige Erweiterungen auf. Es wird vermutet, dass diese Erweiterungen den Blutfluss unter normalen Verhältnissen und bei Hufrehe beeinflussen.
Equine Veterinary Journal – Wiley
Published: Jan 1, 1983
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