obturator muscles
Etymology: L, obturare, to close, musculus
a pair of thigh muscles, the external and internal obturators. The external obturator flexes and rotates the thigh laterally, and the internal obturator abducts and rotates the thigh laterally.
obturator
a disk or plate that closes an opening, e.g. to close a cleft palate temporarily or permanently.
obturator muscles
the muscles that rotate the thigh laterally. See also Table 13.
obturator nerve degeneration
causes permanent obturator nerve paralysis (below).
obturator paralysis
commonly follows pressure on the obturator nerve during parturition; causes inability to adduct the thighs and the cow does the splits. When recumbent the legs are splayed with one on either side of the body.
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Obturator paralysis. By permission from Sack W, Wensing CJG, Dyce KM, Textbook of Veterinary Anatomy, Saunders, 2002
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