Ruminant GIT Part 2 Flashcards
1
Q
Omasum
A
- located: 8th-11th ribs
-RIGHT SIDE
- aka manyplies or butcher’s bible
- function: pump to move ingesta from reticulum to abomasum, vfa production and H2O absorption
- reticulomasal and omasoabomasal orifice
2
Q
Abomasum
A
- RIGHT SIDE
- 8th-12th ribs
- not palpable
- attached by greater and lesser omentum
- supraomental recess
- torus pyloricus
- Clin sig: LDA/RDA, maybe volvulus
3
Q
Why does volvulus occur in cattle
A
If RDA isn’t corrected, the abomasum moves dorsally
4
Q
Abomasal displacement (general)
A
- common in dairy cattle on low roughage diet
- LDA more common
- diagnosing: ascultation & percussion along line between 9th-13th ribs; hearing a “ping” on the L or R side at 11th ICS
- treatment: right flank laparotomy (LDA/RDA) and pyloropexy
5
Q
Right flank laparotomy
A
- cut thru EAO, IAO, TA (via paralumbar fossa)
- deflate abomasum
6
Q
Pyloropexy
A
Suture pyloric part of abomasum to TA
7
Q
Duodenal papillae
A
- small ruminants lack minor (pancreatic and bile ducts open together)
8
Q
Ascending colon
A
- small ruminants: sacculated
- pigs: spiraled
9
Q
Cecum
A
- apex is @ pelvic inlet
- clin sig: torsion @ root of mesentery
10
Q
Cutaneous trunci in bovines
A
- ventrally located
- innervated by lateral thoracic n.
11
Q
L1 & L6 are
A
Not easily palpable
12
Q
3 Major nerves of ruminants
A
- T13: costoabdominal n.; runs dorsal and ventral to tip of L1
- L1: iliohypogastric n.; runs dorsal and ventral to tip of L2
- L2: ilioinguinal n.; runs dorsal and ventral to tip of L3/L4
13
Q
Proximal paravertebral NB
A
- aka Farquharson or Cambridge
- doesn’t block cutaneous trunci m.
- insert needle between intervertebral foramen
14
Q
Distal paravertebral NB
A
- insert needle at dorsal and ventral aspects of transverse processes
- blocks dorsal and ventral branches
15
Q
Dorsal and ventral branches block what?
A
- dorsal: epaxial m.
- ventral: abdominal m.
