what type of joint is the symphasis pubis?
what is the articular surface of the symphasis pubis?
the pubic bodies of each hip bone have a thin hyaline cartilage covering
the interpubic disc is strengthened anteriorly by several interlacing collagenous fibrous layers which interweave with fibres of ___ and ___ tendons of the _____
external oblique aponeuroses and medial tendons of the recti abdominus
what two points does the superior pubic ligament travel between?
from pubic tubercle to pubic tubercle and from crest to crest
attachment point for the arcuate pubic ligament
A1: interpubic disc
A2:inferior pubic rami
FD: Lateral and inferior
what is the primary function of the sacroiliac joint?
firmly unite the pelvic girlde to facilitate the transmission of weight bearing forces between the upper and lower extremities
What type of movement occurs between the ilium and sacrum?
structurally the sacroiliac joint is _ joints consisiting of a __ joint and a __ joint.
2 joints consisting of a SYNOVIAL PLANE joint and a FIBROSIS joint
what are the two articular surfaces of the sacroiliac joint?
ear shaped surface on the sacropelvic surface of the ilium and by a similar shaped surface on the alar (wing) of the sacrum
what are the articular surfaces of the sacroiliac joint covered with?
what two points does the fibrous portion of the sacroiliac joint run between?
exists between the iliac tuberosity and the upper dorsal surface of the sacrum
the two bones of the sacroiliac joint do not contact each other between the iliac tuberosity and the upper dorsal surface of the sacrum, consequently they form a ___ behind which the ___ projects beyond the ___
cleft behind which the ilium projects beyond the sacrum
what is the cleft of the sacroiliac joint filled with?
a dense mass of fibres called the interosseous sacro-iliac ligament
behind the cleft of the sacroiliac joint the fibres are known as the __
dorsal sacro-iliac ligament
what is the massive ligament located posteriorly, forming the chief bond of the SI joint and filling the irregular space posterosuperior to the joint?
interosseous sacro-iliac ligament
what covers the interosseous sacro-iliac ligament superficially?
dorsal sacroiliac ligament
the deeper part of the interosseous sacro-iliac ligament has superior and inferior bands passing from depression posterior to ___ and to ___
superior and inferior bands passing from depressions posterior to sacral auricular surface to iliac tuberosity
does the dorsal sacro-iliac ligament lie anterior or posterior to the interosseous SI ligament?
the dorsal SI ligament has several weak __ connecting ___ and __ sacral crests to the ___ and internal lip of the ___
has several weak FASICULI connecting INTERMEDIATE and LATERAL sacral crests to the PSIS and internal lip of the ILIAC CREST
often inferior fibres from __ and __ sacral segments ascend to ___ forming a separate long posterior sacroiliac ligament
inferior fibres from 3rd and 4th sacral segments ascend to PSIS forming a separate long posterior SI ligament
What is the Posterior SI Ligament continuous with laterally? Medially?
laterally: sacrotuberous ligament
medially: posterior lamina of the thoracolumbar fascia
Which ligament strengthens the ventral portion of the SI joint capsule and is most developed on the anterior inferior aspect of the joint?
anterior sacro-iliac ligament
what two points do the bands of the iliolumbar ligament run between?
the iliac crest and the transverse process of the 5th lumbar vertebrae, consist of 5 parts
what ligament prevents forward slippage of L5?
what ligament limits twisting, forward, back and lateral bending of L5?
Which points does the anterior portion of the iliolumbar ligament travel between?
A1: anterior inferior border of TP of L5
A2: medial body of L5
what two points does the superior portion of the iliolumbar ligament attach to?
A1: anterior and posterior fascia that surrounds QL
A2: anterior superior border of L5 TP
what points does the posterior aspect of the iliolumbar ligament attach to?
attached to the top of the posterior border of the TP and attached to the ilium behind QL
What points does the inferior aspect of the iliolumbar ligament attach to?
A1: lower border of the TP of L5
A2:SI ligament (anterior)
FD: Inferior and lateral
what two points does the vertical aspect of the iliolumbar ligament attach to?
the anterior and inferior border of L5 TP and descends vertically to the iliopectineal line