| crista capitis costae | The ridge that separates the superior and inferior articular surfaces of the head of a rib. Synonym: crista capitis costae. (05 Mar 2000) |
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| crista colli costae | The sharp upper margin of the neck of a rib. Synonym: crista colli costae. (05 Mar 2000) |
| crista conchalis | Bony ridge which articulates with, or provides attachment for, the inferior nasal concha. See: conchal crest of maxilla, conchal crest of palatine bone. Synonym: crista conchalis, turbinated crest. (05 Mar 2000) |
| crista conchalis maxillae | Ridge of the nasal surface of the body of the maxilla that articulates with the inferior nasal concha. Synonym: crista conchalis maxillae. (05 Mar 2000) |
| crista dentalis | <dentistry> The maxillary ridge on the aleveolar processes of the maxillary bones in the foetus. Synonym: crista dentalis. (05 Mar 2000) |
| crista dividens | The lower free edge of the septum secundum, forming the upper margin of the foetal foramen ovale; the limbus of the foramen ovale. (05 Mar 2000) |
| crista fenestrae cochleae | The edge of the opening of the cochlear window to which the secondary tympanic membrane is attached. Synonym: crista fenestrae cochleae, crest of cochlear opening. (05 Mar 2000) |
| crista frontalis | A ridge arising at the termination of the sagittal sulcus on the cerebral surface of the frontal bone and ending at the foramen caecum. Synonym: crista frontalis. (05 Mar 2000) |
| crista galli | The triangular midline process of the ethmoid bone extending superiorly from the cribriform plate; it gives anterior attachment to the falx cerebri. (05 Mar 2000) |
| crista glutea | The point of insertion on the upper portion of the shaft of the femur of the greater part of the gluteus maximus muscle; when markedly developed this tuberosity is called the third trochanter. Synonym: trochanter tertius, tuberositas glutea, crista glutea, gluteal crest, gluteal ridge. (05 Mar 2000) |
| crista helicis | A transverse ridge continuing backward from the helix of the auricle, dividing the concha into an upper portion (cymba) and a lower portion (cavity of concha). Synonym: crus helicis, crista helicis, limb of helix. (05 Mar 2000) |
| crista iliaca | <anatomy> The hip bone in which a large quantity of bone marrow is concentrated. (16 Dec 1997) |
| crista infratemporalis | A rough ridge marking the angle of union of the temporal and infratemporal surfaces of the greater wing of the sphenoid bone. Synonym: crista infratemporalis, pterygoid ridge of sphenoid bone. (05 Mar 2000) |
| crista intertrochanterica | The rounded ridge that connects the greater and lesser trochanters of the femur posteriorly and marks the junction of the neck and shaft of the bone. Synonym: crista intertrochanterica, trochanteric crest. (05 Mar 2000) |
| crista lacrimalis anterior | A vertical ridge on the lateral surface of the frontal process of the maxilla that forms part of the medial rim of the orbit. Synonym: crista lacrimalis anterior. (05 Mar 2000) |