Intermediate Superior Mesenteric Artery Quiz

Q1. Which structure does the superior mesenteric artery pass anterior to shortly after emerging below the pancreas?

• Third part of the duodenum
• Sigmoid colon
• Abdominal esophagus
• First part of the duodenum

Q2. Which structure lies anterior to the SMA near its origin?

• Rectum
• Left adrenal gland only
• Neck of the pancreas
• Urinary bladder

Q3. Which vein passes between the SMA and abdominal aorta?

• Left renal vein
• Portal vein
• Right gonadal vein
• Inferior mesenteric vein

Q4. Which artery provides a major collateral connection between the SMA and celiac territories?

• Inferior pancreaticoduodenal artery
• Right colic artery
• Superior rectal artery
• Appendicular artery

Q5. Which SMA branch commonly travels toward the right side to supply the ascending colon?

• Splenic artery
• Right colic artery
• Left gastric artery
• Left colic artery

Q6. Which side of the SMA commonly gives rise to jejunal and ileal branches?

• Right side only
• Left side
• No consistent mesenteric side
• Posterior surface only

Q7. Which side of the SMA generally gives rise to the ileocolic and colic branches?

• Posterior aortic wall
• Inferior surface of the IMA
• Right side
• Left side exclusively

Q8. What is the usual relationship of the SMA to the root of the small-intestinal mesentery?

• It lies only within the sigmoid mesocolon
• It passes through the inguinal canal
• It remains entirely within the lesser omentum
• It enters and supplies structures through the mesentery

Q9. Which bowel region marks the distal end of the classic SMA territory?

• Proximal two-thirds of the transverse colon
• Entire descending colon
• Distal rectum
• Anal canal below the pectinate line

Q10. Which arterial network links the SMA and IMA along the colon?

• Circle of Willis
• Coronary sinus
• Marginal artery
• Palmar arch