Vessels and Nerves of the Abdominal Viscera Flashcards
The vagus nerve leaves the cranial cavity via…
Tympano-occipital fissure
What branches from the vagus nerve over the base of the heart
The recurrent laryngeal nerve
The right and left vagus nerves divide caudal to the root of the lung into…
Dorsal and ventral branches
The dorsal branches of the vagus nerve unite near the diaphragm to form…
The dorsal vagal trunk
The ventral branches of the vagus nerve unite caudal to the root of the lung to form…
The ventral vagal trunk
What does the ventral vagal trunk supply
The liver, parietal surface of the stomach and the pylorus
The dorsal vagal trunk gives off ____ branch and contributes to the formation of ____
Celiac; celiac and cranial mesenteric plexuses
Where does the dorsal vagal trunk continue to and supply
Along the lesser curvature of the stomach to supply the visceral surface of the stomach, including the pylorus
What three abdominal aortic nerve plexuses were dissected
Celiac, cranial mesenteric and caudal mesenteric
The nerve plexuses dissected contain…
Parasymp preganglionic axons, symp visceral efferent, and visceral afferent processes
What artery did we come across when looking for the sympathetic trunk
Deep circumflex iliac artery
Where do most of the preganglionic axons in the sympathetic trunk pass at the level of T10-13
Into splanchnic nerves
Splanchnic nerves contain ___ axons
Sympathetic
Where does the major splancnic nerve leave the sympathetic trunk
The 12th/13th thoracic sympathetic ganglion
Where does the major splancnic nerve go to
The adrenal and celiacomesenteric ganglia and plexus
Where does the minor splancnic nerve leave the sympathetic trunk
The last thoracic and first lumbar sympathetic ganglion
The minor splancnic nerve supplies the…
Adrenal gland
The minor splancnic nerve terminates in…
The celiacomesentaric plexus
The lumbar splancic nerves arise from ___ and are distributed to ___
2-5 lumbar sympathetic ganglion; aorticorenal, cranial mesenteric and caudal mesenteric ganglia and plexus
Each lumbar artery extends dorsally and terminates in…
A spinal and dorsal branch
What do the spinal branches of lumbar arteries supply
The spinal cord
What do the dorsal branches of the lumbar arteries supply
The muscles and skin above the lumbar veterbrae
What are the 3 branches of the celiac artery
Hepatic, left gastric and splenic
The hepatic artery passes to the liver in the…
Hepatoduodenal ligament
How many branches leave the hepatic artery to supply the liver
1-5
What is the cystic artery
It leaves the last hepatic branch to supply the gallbladder
When/what/where does the hepatic artery terminate in
After giving off branches to the liver, it terminates as the right gastric and gastroduodenal arteries in the lesser omentum
What does the left gastric artery supply
Both surfaces of the stomach
What are the two branches of the splenic artery
Dorsal and ventral
What branch of the splenic artery supplies the stomach and how
Dorsal (some variations will be ventral); it has a few short gastric arteries that course in the gastrosplenic ligament, and it continues as the left gastroepiploic artery on the greater curvature of the stomach
What 3 arteries arise from a common trunk from the cranial mesenteric artery
Middle colic, right colic and ilocolic
What do the branches of the middle colic artery supply
The descending and transverse colon
What does the iliocolic artery supply
Ileum, cecum, ascending colon (colic branch)
What other artery (not from the common trunk) arises from the cranial mesenteric
Caudal pancreaticoduodenal and jejunal arteries (caudal side)
What does the caudal pancreaticoduodenal artery supply
Descending duodenum and right lobe of pancreas
The cranial mesenteric artery is terminated by…
Ileal arteries
The common trunk of what 2 arteries is paired
Caudal phrenic and cranial abdominal
What does the caudal phrenic artery supply
The diaphragm
The adrenal gland may receive branches from…
The aorta, caudal phrenic, renal or lumbar arteries
What renal artery is more cranial than the other
The right
What do the testicular artery, vein and nerve lie in
The mesorchium
The right testicular and ovarian veins enter…
The caudal vena cava
The left testicular and ovarian veins enter…
The left renal vein
What are 2 branches of the caudal mesenteric artery
Left colic and cranial rectal
What does the deep circumflex iliac artery supply
The musculature of the caudodorsal portion of the abdominal wall, and the skin of the caudal abdominal area, the flank and the cranial thigh
The portal vein
Carries the venous blood to the liver from abdominal viscera
Where can the portal vein be found
In the hepatoduodenal ligament at the ventral border of the epicloic foramen
What does the gastroduodenal vein drain
Pancreas, stomach, duodenum and greater omentum
What does the splenic vein drain
Spleen, stomach, pancreas and greater omentum
The splenic vein receives…
The left gastric vein
The left gastric vein drains…
The lesser curvature of the stomach
What does the cranial mesenteric vein drain
Jejunum, ileum, caudal duodenum and right lobe of pancreas
What does the caudal mesenteric vein drain
Cecum and colon
What does the portal vein divide into as it enters the liver
Short right and long left
The right branch of the portal vein supplies…
The right lateral lobe and caudate process of the caudate lobe
The 2 vagal trunks pass through ___ and course along ___
The esophageal hiatus; the lesser curvature of the stomach
What are sinusoids
Special capillaries that receive blood from terminal branches of the hepatic artery and hepatic portal vein and deliver it into central veins
The splanchnic nerves carry fibers of…
Autonomic nervous system and sensory fibers from organs (visceral afferent fibers)
