Intermediate Superior Mesenteric Artery Quiz

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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