notch

A rather deep and narrow gap in a border, acetabular n. The gap in the margin of the acetabulum close to the obturator foramen, clavicular n. A n. at the upper part of the sternum with which the clavicle articulates, cotyloid n. See acetabular n. interclavicular n. A rounded n. at the top of the manubrium of the sternum, between the surfaces with which the clavicles articulate. inter lobar n. The n. in the anterior margin of the liver, separating the left and right lobes, intervertebral n'es. The concavities on the upper and lower borders of the radices of the vertebrae. By their apposition in contiguous vertebrae they constitute the intervertebral foramina. jugular n. A n. on the margin of the jugular proce of the occipital bone which forms the posterior and middle portions of the jugular foramen, nasal n. A deep excavation at the inner margin of the facial surface of the maxilla. Its sharp inferior edge is prolonged below into the anterior nasal spine, n. of Rivinus. The n. in the upper and anterior portion of the o eous ring to which the tympanic membrane is attached, popliteal n. A shallow depre ion which separates the tuberosities of the head of the tibia posteriorly, sacrosciatic n's. Two n's, the greater and the le s. n., situated on the posterior border of the innominate bone. sigmoid n. A n. between the condyle and the coronoid proce of the ramus of the mandible. supra scapular n. Syn.: lunula scapulae. A n., sometimes converted into a foramen by a ligament or bony proce , in the upper border of the scapula just behind the coracoid proce , through which the supra scapular nerve pa es, supra sternal n. See interclavicular n. [Old Eng., nocke.]