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laminitis
Laminitis is a disease that affects the feet of hooved animals (ungulates) and it is found mostly in horses and cattle. Clinical signs include foot tenderness progressing to inability to walk, increased digital pulses, and increased temperature in the hooves. Severe cases with outwardly visible clinical signs are known by the colloquial term founder, and progression of the disease may lead to perforation of the coffin bone through the sole of the hoof, requiring aggressive treatment or euthanasia.
==Laminae==
The bones of the hoof are suspended within the axial hooves of ungulates by layers of modified skin cells, known as laminae or lamellae, which act as shock absorbers during locomotion. In horses, there are about 550-600 pairs of primary epidermal laminae, each with 150-200 secondary laminae projection from their surface. These interdigitate with equivalent structures on the surface of the coffin bone (PIII, P3, the third phalanx, pedal bone, or distal phalanx), known as dermal laminae. The secondary laminae contain basal cells which attach via hemidesmosomes to the basement membrane. The basement membrane is then attached to the coffin bone via the connective tissue of the dermis.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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