TOPIC 19A - SACRUM, ART. SACROILIACA Flashcards
how many sacral vert. in Car?
3
how many sacral vert. in eq + bo?
5
how many sacral vert. in sus + ov
4
list the main structures of the sacrum (11)
proc spinosi foramina sacralis dorsalia crista sacralis lat ala sacralis foramina sacralis ventralia canalis sacralis promotorium facies auricularis proc. articularis cran + caud linea transversa apex ossis sacri
in which species are the spinous processes fused and what is it called?
Ru + older horses
crista sacralis mediana
what type of articulation is art sacroiliaca?
amphiarthrosis, synovial
what bones form art sacroiliaca?
facies auricularis of alla ossis illi + facies auricularis of alla sacralis
what ligaments are part of art sacroiliaca?
lig sacroiliaca ventralia lig sacroiliaca interossea lig sacroiliaca dorsalia lig sacrotuberale (ca) lig sacrotuberale latum (Un)
what does lig sacroiliaca ventralia do?
reinforces the joint capsule
where is lig sacroiliaca interossea located?
btw tub. iliaca + dorsal surface of ala sacralis
which ligament splits into 2 branches?
lig sacroiliaca dorsalia - pars breve and pars longum
name the branches of lig sacroiliaca dorsalia
pars breve
pars longa
where is lig sacroiliaca dorsalia pars breve located in ca + sus?
btw tub. sacralis + proc. mamillares
where is lig sacroiliaca dorsalia pars breve located in eq + Ru?
btw tub. sacralis + proc spinosus
what species is lig sacrotuberale not present in?
fe
where is lig sacrotuberale located?
ca: btw the transverse proc. of the last sacral vert. + tuber ischiadicum
eq,ru: bw lat part of sacrum, and first caudal vert –> tuber ischiadicum and ischiadic spine in older animals
where does lig sacrotuberale latum originate in bo?
lateral part of sacrum
where does lig sacrotuberale latum originate in eq + sus?
transverse proc. of 1st sacral vert.
where does lig sacrotuberale latum insert (2)?
tuberal portion: tuber ischiatica
spinous portion: spina ischiatica
the tuberal portion is visible under the skin in which species?
bo
covered by muscle in eq + sus
what does lig sacrotuberale latum form in eq, sus, ru?
for. ischiadicum majus
for. ischiadicum minus
