Intermediate Intestinal Lymphatic Trunk Quiz

Q1. Which lymph node groups are most directly associated with formation of intestinal lymphatic drainage trunks?

• Occipital and mastoid nodes
• Axillary and cubital nodes
• Popliteal and superficial inguinal nodes only
• Celiac and mesenteric lymph nodes

Q2. How does lymph from intestinal lacteals reach the intestinal lymphatic trunk?

• Directly through the portal vein
• Through larger lymphatics and regional mesenteric nodes
• Through the common bile duct
• Through the ureters

Q3. Why does intestinal lymph become especially rich in lipid after a meal?

• Chylomicrons enter intestinal lacteals
• Pancreatic enzymes become lymph
• Red blood cells enter lacteals
• The liver secretes bile into lymphatics

Q4. Which pre-aortic lymph node group receives lymph from much of the midgut before it enters central intestinal lymphatic pathways?

• External iliac lymph nodes
• Parasternal lymph nodes
• Superior mesenteric lymph nodes
• Submental lymph nodes

Q5. Which pre-aortic lymph node group receives lymph from much of the hindgut?

• Tracheobronchial nodes
• Popliteal nodes
• Inferior mesenteric lymph nodes
• Axillary nodes

Q6. Which pre-aortic lymph node group receives lymph from many foregut-associated abdominal organs?

• Epitrochlear nodes
• Deep cervical nodes
• Superficial inguinal nodes
• Celiac lymph nodes

Q7. What is the relationship between the intestinal trunk and cisterna chyli?

• It always empties into the right atrium directly
• It commonly joins the central lymphatic convergence near the cisterna chyli
• It is a branch of the portal vein
• It terminates in the gallbladder

Q8. Which feature of the intestinal lymphatic trunk is anatomically variable?

• Its location inside the spinal cord
• Its conversion into an artery
• Number and termination of the channels
• Its function as a bile duct

Q9. What distinguishes intestinal lymphatic lipid transport from venous absorption of many water-soluble nutrients?

• All nutrients enter only lymph
• All lipids enter the renal veins
• Chylomicrons initially enter lymph rather than portal blood
• Portal blood carries no nutrients

Q10. Which sequence best describes central transport of intestinal chyle?

• Intestinal lymphatics, regional nodes, intestinal trunk, cisterna chyli or thoracic duct
• Intestinal lymphatics, bile duct, gallbladder, thoracic duct
• Intestinal lymphatics, ureter, bladder, thoracic duct
• Intestinal lymphatics, portal vein, hepatic vein, thoracic duct