| sentinel spinous process fracture | Fracture of the spinous process with undetected deeper fracture's of the vertebral arch. (05 Mar 2000) |
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| spinous | 1. Spinose; thorny. 2. Having the form of a spine or thorn; spinelike. <anatomy> Spinous process of a vertebra, the dorsal process of the neural arch of a vertebra; a neurapophysis. Source: Websters Dictionary (01 Mar 1998) |
| spinous layer | The layer of polyhedral cells in the epidermis; shrinkage artifacts and adhesion of these cells at their desmosomal junctions gives a spiny or prickly appearance. Synonym: prickle cell layer, spinous layer. (05 Mar 2000) |
| spinous process | The dorsal projection from the centre of a vertebral arch. Synonym: sphenoidal spine. (05 Mar 2000) |
| spinous process of tibia | Intercondyloid eminence, an elevation on the proximal extremity of the tibia between the two articular surfaces. Synonym: eminentia intercondylaris, eminentia intercondyloidea, spinous process of tibia. (05 Mar 2000) |