Advanced Cardia of Stomach Quiz

Q1. Which anatomical mechanisms contribute to competence of the gastroesophageal junction despite the absence of a discrete thick anatomical sphincter comparable to the pylorus?

• Only the pyloric sphincter
• Lower esophageal tone, diaphragmatic crura, intra-abdominal esophagus, and the angle of His
• Only the greater omentum
• Taeniae coli and haustra

Q2. What is the angle of His?

• The angle between the esophagus and gastric fundus
• The angle between the ileum and cecum
• The angle between the pylorus and duodenum
• The angle between the rectum and anal canal

Q3. Why is the cardial region clinically important in portal hypertension?

• It contains the only arterial supply to the liver
• It drains exclusively into the inferior vena cava
• It contains a portal-systemic connection between left gastric and esophageal venous tributaries
• It has no venous anastomoses

Q4. Which developmental event explains why the left vagus becomes mainly anterior and the right vagus mainly posterior at the stomach?

• Longitudinal rotation of the embryonic stomach
• Fusion of the pancreatic buds
• Descent of the cecum
• Midgut rotation around the superior mesenteric artery

Q5. Which statement best describes sympathetic innervation reaching the gastric cardia?

• Thoracic splanchnic fibers synapse in celiac ganglia before postganglionic fibers follow gastric arteries
• The vagus nerve carries sympathetic fibers to the cardia
• The pudendal nerve supplies gastric smooth muscle
• Pelvic splanchnic nerves provide the sympathetic supply

Q6. Why can visceral pain arising from the cardial region be referred to the epigastric area?

• The femoral nerve carries gastric visceral pain
• Foregut visceral afferents project to upper thoracic levels associated with the epigastrium
• All gastric sensation enters through sacral nerves
• The cardia is supplied only by somatic intercostal nerves

Q7. How is the cardia related to the peritoneum?

• It is part of an intraperitoneal organ covered by visceral peritoneum except at attachment sites
• It lies within the pleural cavity
• It is entirely retroperitoneal
• It is entirely extraperitoneal

Q8. Why is the diaphragmatic relationship of the cardia functionally important?

• The diaphragm forms the pyloric sphincter
• Crural fibers reinforce the gastroesophageal antireflux mechanism
• The diaphragm creates gastric rugae
• The diaphragm supplies the cardia through the inferior mesenteric artery

Q9. Which lymphatic pathway is most characteristic of the gastric cardia?

• Left gastric nodes toward celiac nodes
• Popliteal nodes toward superficial inguinal nodes
• Inferior mesenteric nodes toward internal iliac nodes
• Axillary nodes toward cervical nodes

Q10. Which statement best integrates the anatomy of the gastric cardia?

• It is a midgut segment supplied by the superior mesenteric artery
• It is a hindgut organ innervated mainly by pelvic splanchnic nerves
• It is a foregut-derived gastroesophageal region with specialized mucosa, left gastric vascular and lymphatic pathways, vagal and sympathetic supply, diaphragmatic support, and portal-systemic venous connections
• It is a retroperitoneal structure without autonomic innervation