(A) Sacral promontory
(A) Pelvic sacral foramina
(A) Apex
(A) Base
(A) Apex
(A) Coccyx
(A) Sacrum
(A) 1st
(A) 2nd
(A) 3rd
(A) 4th
(A) 5th
(A) 1st
(B) Superior articular process
(B) Base
(B) Promontory
(B) Articular surface
(B) Sacrum
(B) Coccygeal cornu
(B) Coccyx
(B) Sacral cornu
