SI joint Flashcards
FISH stands for
fibrocartilage on ilium, sacrum has hyaline
tapering of sacrum is
superior to inferior and anterior to posterior?
bonnaires tubercle
iar: instantaneous axis of rotation where movement occurs, on iliac
whats in a motor unit
two vertebrae and structures around it
sacrum is what type of jt
irregular diarthrotic jt
what are the ligaments of the si jt
articular capsule interosseous si lig anterior si lig long lig short lig accessory lig
articular capsule is on the () surface of jt
anterior
where is the interosseas lig
in between bone, makes articular surface not smooth
anterior si lig is thin on () aspect
anterior
what are the 2 ligaments on the posterior side of sacrum
long and acceossry ligs
the ligaments on the front si are for
slippage
the ligaments on back is for
holding si in place
what are locations of long lig
psis and sacral tubercles of S3 and S4
what are locations of short lig
sacral tubercles of s1 and s2
what are the accessory lig
sacrotuberous lig
sacrospinous lig
iliolumbar lig
what does long blend with
sacrotuberous
what do you think of for nutation as going into flexion
nutation
nutation only occurs in
static motion, closed chain so like touch toes
counter nutation moves
posterior and superior
nutations moves
anterior and inferior base and coccyx goes post and superior
