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coronary cushion
noun
a thick band of vascular tissue in the coronet of horses and other hoofed animals that secretes the horny wall of the hoof.
Example Sentences
Running down the centre of the incomplete horn is usually a narrow fissure marking the line of separation in the papillary layer of the coronary cushion, which, as we shall later see, is responsible for the malformation.
Superiorly the cavity is quite narrow, and extends to near the lower surface of the coronary cushion, while inferiorly, at its open portion, it is often 1/2 inch to 1 inch wide.
They may occur in any position, but are usually seen at the toe, and they may extend from the coronary cushion to the sole, or they may occupy only the lower or the upper half of the wall.
A, Os suffraginis; B, os coronæ; C, os pedis; D, navicular bone; E, tendon of the extensor pedis; F, insertion of the extensor pedis into the pyramidal process of the os pedis; G, the tendon of the flexor perforatus; H, insertion of perforatus into the os coronæ; I, tendon of the flexor perforans; J, its passing attachment to the os coronæ; K, its final insertion into the semilunar crest of os pedis; a, section of coronary cushion; b, section of plantar cushion; c, semilunar sinus of os pedis.
In front these are continuous with the ridges of the pyramidal body, while behind they become confounded with the lateral cartilages and the coronary cushion.
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