Definitions
Century Dictionary and Cyclopedia
- n. In anatomy, the innominate bone, more expressly called os innominatum; the haunch-bone, flank-bone, hip-bone, or os coxæ. It is formed of three confluent bones, the ilium, ischium, and pubis; it forms, with its fellow of the opposite side and with the sacrum and coccyx, the bony basin called the pelvis; and it furnishes the socket for the femur or thigh-bone, thus making the hip-joint. The two innominata form the hip-girdle or pelvic arch. In man each innominatum is articulated behind with the sacrum by the sacro-iliac synchondrosis, and joined in front with its fellow by the pubic symphysis. The iliac part is flattened and expansive; the ischiac and pubic parts are narrower, and by their rami meet again to circumscribe the obturator foramen. The three parts of the compound bone come together at the acetabulum or cotyloid cavity. The main axis of the bone is in the direction of the iliopectineal line, which forms the brim of the true pelvis. The right and left innominate bones are together called
ossa innominata . See also cut underpelvis . - n. Something whose use and name are unknown: a term used frequently in schedules and the like with respect to objects of antiquity.
Examples
“The os innominatum may be so fractured that the pelvic girdle is broken, as in fracture of the iliac shaft, or in a manner that the girdling continuity of the innominate bones is not interrupted.”
Lameness of the Horse Veterinary Practitioners' Series, No. 1
“By removing the os innominatum, A D, Plate 48, together with the internal obturator, and levator ani muscles, which arise from its inner side, we obtain a lateral view, Plate 49, of the pelvic viscera, and of the vessels &c. connected with them.”
“These include official letters written by Bonaventure as general to the superiors of the order, as well as personal letters addressed like that "Ad innominatum magistrum" to private individuals.”
“These fractures will be considered under their separate denominations, as those of the sacrum and the os innominatum, or hip, which includes the subdivisions of the ilium, the pubes, and the ischium.”
“Mingled with the rest, the pelvic bone of a man, os innominatum, was obtained by Dr. Dickeson of Natchez, in whose collection I saw it.”
“Epistula de tribus quaestionibus ad magistrum innominatum, in Opere di San Bonaventura.”
“[Illustration: _The Pelvis. _ a, _the sacrum; _ b, b, _the right and the left innominatum.”
Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics
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