sciatic

sciatic /sci·at·ic/ (si-at´ik)

1. near or related to the sciatic nerve or vein.

2. ischial.

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sci·at·ic (s-tk)

adj.

1. Of or relating to the ischium or to the region of the hipbone in which it is located.

2. Of or relating to sciatica.

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sciatic

pertaining to the ischium.

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sciatic nerve

a large nerve extending from the lumbosacral plexus down the thigh, with branches throughout the lower leg and foot. It is the widest nerve of the body and one of the longest. See also Table 14.

sciatic nerve degeneration

occurs during parturition in cows due to passage of a large fetus through the pelvic canal causing pressure and subsequent degeneration of one or both sciatic nerves leading to posterior paresis or paralysis.

sciatic nerve paralysis

injury to the sciatic nerve, commonly during difficult parturition in heifers, causes weakness or paralysis of one hindleg and the animal is recumbent. See also maternal obstetric paralysis.