Day 18 Flashcards
(7 cards)
1
Q
What is characteristic of lumbarization of S1?
A
the failure of synostosis between S1 and S2, squaring of the vertebral body of S1 and flaring of the sacral ala
2
Q
What articular facet changes accompany lumbarization of S1?
A
none
3
Q
What is characteristic of sacralization of L5?
A
L5 may be partially or completely fused to the sacrum
4
Q
Which segment demonstrates the greatest morphological variation along the spine?
A
L5
5
Q
What is the incidence of variation within the sacrococcygeal region in the population?
A
up to 14%
6
Q
What is characteristics of sacralization of Co1?
A
the premature fustian of Co1 to the sacrum
7
Q
What is characteristic of coccygealization of S5?
A
the separation of S5 from sacrum and its; premature fustian to Co1
