TOPIC 19A - SACRUM, ART. SACROILIACA

Question 1

how many sacral vert. in Car?

Answer 1

3

Question 2

how many sacral vert. in eq + bo?

Answer 2

5

Question 3

how many sacral vert. in sus + ov

Answer 3

4

Question 4

list the main structures of the sacrum (11)

Answer 4

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

Question 5

in which species are the spinous processes fused and what is it called?

Answer 5

Ru + older horses

crista sacralis mediana

Question 6

what type of articulation is art sacroiliaca?

Answer 6

amphiarthrosis, synovial

Question 7

what bones form art sacroiliaca?

Answer 7

facies auricularis of alla ossis illi + facies auricularis of alla sacralis

Question 8

what ligaments are part of art sacroiliaca?

Answer 8

lig sacroiliaca ventralia
lig sacroiliaca interossea
lig sacroiliaca dorsalia
lig sacrotuberale (ca)
lig sacrotuberale latum (Un)

Question 9

what does lig sacroiliaca ventralia do?

Answer 9

reinforces the joint capsule

Question 10

where is lig sacroiliaca interossea located?

Answer 10

btw tub. iliaca + dorsal surface of ala sacralis

Question 11

which ligament splits into 2 branches?

Answer 11

lig sacroiliaca dorsalia - pars breve and pars longum

Question 12

name the branches of lig sacroiliaca dorsalia

Answer 12

pars breve

pars longa

Question 13

where is lig sacroiliaca dorsalia pars breve located in ca + sus?

Answer 13

btw tub. sacralis + proc. mamillares

Question 14

where is lig sacroiliaca dorsalia pars breve located in eq + Ru?

Answer 14

btw tub. sacralis + proc spinosus

Question 15

what species is lig sacrotuberale not present in?

Answer 15

fe

Question 16

where is lig sacrotuberale located?

Answer 16

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

Question 17

where does lig sacrotuberale latum originate in bo?

Answer 17

lateral part of sacrum

Question 18

where does lig sacrotuberale latum originate in eq + sus?

Answer 18

transverse proc. of 1st sacral vert.

Question 19

where does lig sacrotuberale latum insert (2)?

Answer 19

tuberal portion: tuber ischiatica

spinous portion: spina ischiatica

Question 20

the tuberal portion is visible under the skin in which species?

Answer 20

bo

covered by muscle in eq + sus

Question 21

what does lig sacrotuberale latum form in eq, sus, ru?

Answer 21

for. ischiadicum majus

for. ischiadicum minus