Equine Digestive Accessory Organs (16) Flashcards
Dr. Nader
What are the other abdominal organs?
liver
gallbladder
spleen
pancreas
accessory digestive organs
In the equine, the liver is mostly oriented on the [right/left] side of the abdomen
right
What are the equine liver lobes?
right lobe
left lateral lobe
left medial lobe
quadrate lobe
caudate process of caudate lobe
What does the equine not have regarding the liver?
papillary process
gallbladder
What is the name of the duct branching from the liver?
common hepatic duct
What large vein branches from the liver?
hepatic portal vein
Is the caudal vena cava dorsal or ventral to the common hepatic duct?
dorsal
Is this the left or right side?
left - notice how there is not much liver on the left side
Label 1-2
- right lobe of the liver
- quadrate lobe
Where is the equine spleen located?
left dorsal abdomen
The [apex/base] of the spleen extends cranially
apex
What part of the spleen is possibly palpable via the rectum?
caudal edge of greater curvature
What does the nephrosplenic ligament connect?
spleen and the left kidney
remember, spleen is mostly on left side, so it would make sense that the spleen connects to the left kidney specifically
What does the gastrosplenic ligament connect?
runs in the greater omentum and connects the lesser curvatures of the spleen to the greater curvature of the stomach
Label 1-2
- nephrosplenic ligament
- gastrosplenic ligament
Where is the equine pancreas located? What is its shape?
located transversely across the abdomen, touching the dorsal body wall
heart-shaped
Which vessel does the pancreas wrap around?
the portal vein
Which arteries arise from the celiac artery in the equine?
splenic a.
left gastric a.
hepatic a.
What artery branches off the splenic artery?
left gastroepiploic a.
What artery branches off the hepatic a.?
right gastric a.
From the R. gastric a. (which is derived from the hepatic a.), what is its next branch?
gastroduodenal a.
What are the 4 circled structures?
- celiac a.
- splenic a. —> L. gastroepiploic a.
- L. gastric a.
- hepatic a. —> R. gastric —> gastroduodenal a.
What are the branches off the cranial mesenteric a.?
caudal pancreaticoduodenal a.
jejunal a.
ileocolic a. —> ileocolic branch
right colic a.
middle colic a.
What are the branches off the caudal mesenteric a.?
L. colic a.
In equine fetal circulation, the umbilical vein becomes the ________, and the umbilical arteries become the _________
umbilical vein: falciform ligament
umbilical arteries: round ligaments of the bladder
What are the equine fetal circulatory system modifications? (Structures)
umbilical vein
umbilical arteries
foramen ovale
ductus arteriosus
What is the significance of the ductus arteriosus in the fetal equine?
serves as a shunt between the pulmonary artery and the aorta
In the fetus, blood is oxygenated in the placenta and ultimately pumped to the body systems. The fetal lungs are filled with amniotic fluid and, therefore, cannot be used to oxygenate the blood.
What is the significance of the fossa ovale in the fetal equine?
allows blood flow to bypass the lungs
