Horse Abdomen Lab Flashcards
What is the heaveline
Musculoaponeurotic jxn of the EAO
Purpose and location of tunica flava
Adhered to EAO and helps carry weight of viscera.
-Needs to be carefully sutured when closing abdomen
Most cranial extent of the diaphragm
Olecranon and lower end of 6th rib
T/F Liver reaches floor of abdomen
F
Does not
T/F In normal adult, liver is located outside of thoracic cage
F
Entirely inside
T/F In foal, liver can extend beyond thoracic cage
T
T/F Lung overlies liver on both sides of the body
T
T/F Bulk of liver is on L side from 7-15th IC space
F
Right side
How can you decided texture and size of liver?
Ultrasonography
What can herniate through the epiploic foramen?
Loop of jejunum
How can you differentiate descending colon from jejunum in exploaratory celictomy?
Prominent free band and distinct sacculations
Where is the base of the cecum normally auscultated?
Right paralumbar fossa
Small colon can be auscultated?
Left paralumbar fossa
Neohrosplenic entrapment
Dorsal displacement of left colon
Explain dorsal displacement of left colon
Shifting of left dorsal and ventral colons into dorsal end of spleen and left kidney.
-Severe colic
Pain in abdomen
Colic
Ways to get colic (2)
Obstruction of flow in jejunum
-Twist on itself and onto epiploic foramen
Ileum can be incacerated in cecum through ileal orifice
4 potential sites of impaction
1-cecocolic jxn
2-Pelvic flexure
3-Jxn btw R dorsal and transverse colons
4-Ileum into base of cecum-ileal impaction
Where is cardia and importance
Opposite of 11th rib
Do not pass nasogastric tube beyond 11th rib
Where is stomach
L flank btw liver cranially and spleen caudally and entirely in thoracic cage
Why can horse not vomit
Acute angle esophagus enters stomach
Thick cardiac sphincter
Inflammation of intestine
-Clinical importance
Enteritis
-May cause swelling and blockage of orifices of bile and pancreatic ducts in duodenum causing stasis and jaundice
What are mesenteric arteries vulnerable to
Strongylus vulgaris larvae that migrate from intestine to aorta in walls of arteries supplying gut
-Can cause verminous aneurysm
The cecum may allow up to ____ to enter its lumen
4 m of ileum + jejunum via intussusception (one segment of intestine telescoping into adjacent segment)
