BASIC OSTEOLOGY - sacrum Flashcards
what is the typical number of segments that unite to form the adult sacrum
5 segments
an imaginary line drawn along the dorsal midline of sacrum is identified as the
median sacral crest
what forms the median sacral crest
fused spinous processes and their spinous tubercles
an imaginary line drawn from the superior articular process of S1 to the sacral cornu will form what feature
intermediate sacral crest
what forms the intermediate sacral crest
fused articular processes and their facets
what features may be identified along the intermediate sacral crest
the mammillary process of S1 and the sacral cornu of S5
what is the remnant of the inferior articular process and facet of S5
the sacral cornu
what is the name of the inferior opening of the sacral spinal canal
the sacral hiatus
an imaginary line drawn from the transverse process of S1 to the inferior lateral sacral angle will form what feature
the lateral sacral crest
what forms the lateral sacral crest
the fused transverse processes and transverse tubercles from S1 to S5
what is the sacral tuberosity
the enlarged transverse tubercle of S2
what feature is associated with the transverse tubercle of S5
the inferior and lateral (inferolateral) sacral angle
from the anterior view, the intervertebral discs of sacrum will be replaced by what feature
transverse ridges
what is the name given to the openings that transmit the ventral sacral nerve rami
anterior sacral foramina, ventral sacral foramina, or ventral pelvic foramina
what feature is identified on the lateral surface of S1-S3
auricular surface
