GI Tract: Blood Supply and Nerves Flashcards
All of the following branches of the Abdominal Aorta are retroperitoneal EXCEPT?
A. Celiac trunk supplier of foregut
B. SMA supplier of midgut
C. IMA supplier of hindgut
B. SMA supplier of midgut
The celiac trunk gives off what 3 main branches?
Splenic A.
Common Hepatic A.
Left Gastric A.
The Right Gastric artery supplies the lesser curvature of the stomach with the left gastric a. The Right gastric A. comes off what artery?
Common Hepatic A.
(sometimes the proper hepatic a. )
The esophagus is supplied by branches that come off which of the following?
A. Right gastric A.
B. Left Gastric A.
C. Gastroduodenal A.
D. Splenic A.
Left Gastric A.
Which of the following arteries gives off the short gastric aa. that supply the fundus of the stomach? Bonus: What other branches are given off by this artery?
A. Left Gastric A.
B. Gastroduodenal A.
C. Common Hepatic A.
D. Splenic A.
Splenic A.
- Left Gastroepoploic
The splenic A. is housed within what ligament?
A. Hepatoduodenal L.
B. Gastrocolic L
C. Gastrosplenic L.
D. Gastrophrenic L.
Gastrosplenic L.
The splenic a. helps supply all of the following structures EXCEPT?
A. Lesser Curvature of the stomach
B. Body of the pancres
C. Fundus and Greater Curvature of the Stomach
D. Spleen
Lesser Curvature of the stomach
What two arteries are found posterior to the duodenum?
A. Inferior pancreaticoduodenal A and Gastroepoploic A.
B. Gastroduodenal A. and Superior pancreaticoduodenal A.
C. Gastroduodenal A. and left gastroepoploic A.
D. All of the above
Gastroduodenal A. and Superior pancreaticoduodenal A.
Which of the following gives off branches that supply the duodenum distal to the bile duct?
A. Celiac Trunk
B. SMA
C. IMA
SMA
The SMA supplies the intestines from the distal portion of the duodenum to what structure?
A. Sigmoid Colon
B. distal 1/3rd of the Transverse Colon
C. proximal 2/3rds of the Transverse colon
D. Rectum
proximal 2/3rds of the Transverse colon
What branch off the SMA supplies the transverse colon (proximal 2/3rds)?
A. Intestinal A.
B. Appendicular A.
C. Ileocolic A and Intestinal Aa.
D. Middle Colic A.
E. Ileocolic A. and Right Colic A.
Middle Colic A.
What branch off the SMA supplies the ascending colon?
A. Intestinal A.
B. Appendicular A.
C. Ileocolic A and Intestinal Aa.
D. Middle Colic A.
E. Ileocolic A. and Right Colic A.
Ileocolic A. and Right Colic A.
What branch off the SMA supplies the ileum?
A. Intestinal A.
B. Appendicular A.
C. Ileocolic A and Intestinal Aa.
D. Middle Colic A.
E. Ileocolic A. and Right Colic A.
Ileocolic A and Intestinal aa.
NOTE: Jejunum is just Intestinal aa.
What branch of the SMA travels posterior to the uncinate and head of the pancreas?
A. Intestinal aa
B. Posterior Superior Pancreaticoduodenal A.
C. Posterior Inferior Pancreatiocoduodenal A.
D. Anterior Inferior Pancreaticoduodenal A.
Posterior Inferior Pancreatiocoduodenal A.
The Right Colic A. comes off the ____ while the Left Colic A. comes off the _____
The Right Colic A. comes off the SMA while the left Colic A. comes off the IMA
I and lowercase L look the same
The IMA has 3 branches that supply the desceding colon, sigmoid colon, and proximal rectum. What are those branches? Indicate what they supply
Descending Colon: Left Colic A.
Sigmoid Colon: Sigmoid aa.
Rectum (proximal): Superior Rectal A.
The Marginal A. of Drummond consists of multiple anastomoses connecting the SMA to the IMA that help prevent intestinal ischemia. What are the aa involved?
Right, Middle, and Left Colic
Sigmoid aa.
Blood supply to the rectim involves the 3 arteries expressed below. They supply the portion of the rectum you think they do, what’s tricky is remember what they branch from. Which one branches off the IMA?
A. Superior Rectal A.
B. Middle Rectal A.
C. Inferior Rectal A.
Superior Rectal A.
Blood supply to the rectim involves the 3 arteries expressed below. They supply the portion of the rectum you think they do, what’s tricky is remember what they branch from. Which one branches off internal iliac A.?
A. Superior Rectal A.
B. Middle Rectal A.
C. Inferior Rectal A.
Middle Rectal A.
Blood supply to the rectim involves the 3 arteries expressed below. They supply the portion of the rectum you think they do, what’s tricky is remember what they branch from. Which one branches off Internal Pudendal A.?
A. Superior Rectal A.
B. Middle Rectal A.
C. Inferior Rectal A.
Inferior Rectal A.
The Hepatic Portal Vein is formed by the union of what 3 veins?
Splenic V.
Superior Mesenteric V.
Inferior Mesenteric V.
I barely caught what he said in lecture, but this seems important
Hope you got it
What thoracic splanchnic nerves synapse on the Celiac Ganglion near the celiac trunk and send postagnaglionic fibers that travel with the branches of the celiac artery?
A. Greater Splanchnic N. (T5-T9)
B. Lesser Splanchnic N. (T10-11)
C. Least Splanchnic N. (T12)
Greater Splanchnic N.
Structures:
ESophagus
Stomach
Spleen
Pancreas
Liver
Biliary System
Gallbladder
Greater Omentum
What thoracic splanchnic nerves synapse on the Superior Mesenteric Ganglion that surrounds the SMA and sends out postgang fibers that are distrubuted with branches of the SMA?
A. Greater Splanchnic N. (T5-T9)
B. Lesser Splanchnic N. (T10-11)
C. Least Splanchnic N. (T12)
Lesser Splanchnic N.
Jejunum
Ileum
Cecum
Ascending Colon Transverse Colon
The Least Splanchnic N. sendds fibres that synapse in what ganglion?
A. Inferior Mesenteric Plexus
B. Aorticorenal Ganglion
C. Superior Mesnteric Plxus
D. Intermesenteric Plexus
Aorticorenal Ganglion
Tricky Tricky
- The Least Splanchnic Ns synapse in aorticorenal ganglion and postganglionic fibers get distributed with Renal aa to the Kidneys and suprarenal glands
Lumbar Splanchnic Ns. consists of 4 bilateral sets of nerves originating in sympathetic ganglion L1-L5. 1st and 2nd Lumbar Splanchnic nn. synapse on Intermesenteric Plexus that found where?
A. Posterior Surface of Abdominal aorta between celiac trunk and SMA
B. Anterior surface of Abdominal Aorta between SMA and IMA
C. Anterior surface of Abdominal Aorta between SMA and IMA
D. None of the above
Anterior surface of Abdominal Aorta between SMA and IMA
Branches of which of the following splanchnic nerves is distrubuted with branches of the IMA to the descending colon, sigmoid colon, and proximal rectum?
A. Greater Splanchnic N. (T5-T9)
B. Lesser Splanchnic N. (T10-11)
C. Least Splanchnic N. (T12)
D. 1st and 2nd Lumbar Splanchnic nn.
E. 3rd and 4th Lumbar Splanchnic nn.
D. 1st and 2nd Lumbar Splanchnic nn.
Which portion of the 3rd and 4th Lumbar Splanchinic nn. travel to the ureter?
A. Post ganglionic fibers originating from the Inferior Hypogastric Plexus
B. Postganglionic fibers originating from the Superior Hypogastric plexus
B. Postganglionic fibers originating from the Superior Hypogastric plexus
Which portion of the 3rd and 4th Lumbar Splanchinic nn. travel with the Internal Iliac A. to go to the organs of the pelvis and peritoneum?
A. Post ganglionic fibers originating from the Inferior Hypogastric Plexus
B. Postganglionic fibers originating from the Superior Hypogastric plexus
A. Post ganglionic fibers originating from the Inferior Hypogastric Plexus
Sacral Splanchnic nn. synapse in what plexus before sending out postganglionics with the Pudendal N. and Internal Iliac A.?
A. Intermesenteric Plexus
B. Superior Hypogastric Plexus
C. Inferior Hypogastric Plexus
D. None of the above
Inferior Hypogastric Plexus
NOTE: 3rd and 4rd Lumbar Splanchnic nn. also utilize this plexus
T/F: Pelvic Splanchnic nn originate from S2-4 and synapse on Enteric Plexus
True
found on the walls of the descending colon, sigmoid colon, rectum, anal canal, urogenital organs and urogenital triangle
T/F:Parietal (Somatic) Pain travels on somatic afferent fibers in the abdominal wall T7-T12 to the spinal cord to the brain
True
T/F: Visceral pain radiates to dermatome level based on info from visceral afferents from the organ of concern
True
