Anatomy Atlases: Atlas of Human Anatomy in Cross Section: Section 5. Lower Thorax (Lungs) and Abdomen

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Atlas of Human Anatomy in Cross Section: Section 5. Lower Thorax (Lungs) and Abdomen

Plate 5.8

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Jean J. Jew, M.D., and Paul C. Reimann, B.S.
Peer Review Status: Externally Peer Reviewed

Upper Left Quadrant	Lower Left Quadrant	Lower Right Quadrant	Upper Right Quadrant
1. Left hepatic lobe 2. Left gastric blood vessels 3. Hepatic fissure 4. Rectus abdominis m. and ligamentum teres hepatis 5. Pancreas, head 6. Pancreatic duct (Wirsung) 7. Abdominal cavity 8. Pylorus of stomach and gastroduodenal a. 9. Rib 8 10. Diaphragm 11. Common bile duct 12. Rib 8 13. Duodenum, proximal part 14. Gallbladder 15. Rib 9 16. Inferior vena cava	17. Lymph node and abdominal aorta 18. Renal v., junction with inferior vena cava 19. Rib 10 20. Latissimus dorsi m. and right lobe of liver 21. Rib 11 and serratus posterior inferior m. 22. Renal cortex and right renal pelvis 23. Rib 12 and renal medulla 24. Diaphragm and lesser splanchnic nerve 25. Lumbar v. and greater splanchnic nerve 26. Longissimus m. and mamillary process of vertebra, L1 27. Thecal sac and multifidus m. 28. Conus medullaris (sacral cord)	29. Vertebral spine, L1 30. Nerve roots (cauda equina) 31. Transverse process of vertebra, L1 32. Anterior longitudinal ligament and left crus of diaphragm 33. Serratus posterior inferior m. and left renal pelvis 34. Renal a. 35. Suprarenal gland 36. Splenic v. and toil of pancreas 37. Spleen	38. Parietal peritoneum and jejunum 39. Descending colon and transverse mesocolon 40. Middle colic a. and v. 41. Intercostal mm. 42. Superior mesenteric a. 43. Stomach, antrum 44. Transverse colon 45. Splenic v. 46. Linea alba

This section passes through the first lumbar vertebra (31) and its transverse (31) and mamillary (26) processes. It also passes through the twelfth (23), eleventh (21), tenth (193, ninth (15), and eighth (9, 12) ribs.

The right suprarenal gland (35), the tail of the pancreas (36), and the spinal cord (28) make their last appearance in this section.

The upper right quadrant contains a part of the transverse colon (44), the antrum of the stomach (43), the descending colon (39), and the transverse mesocolon (39). The middle colic artery and vein (40) can also be seen.

The lower right quadrant contains the tail of the pancreas along with the splenic vein (36), the suprarenal gland (35), and the left kidney (33) cut through the pelvis.

The lower left quadrant contains the right renal pelvis (22), the renal medulla (23) and renal cortex (22), the right lobe of the liver (20), and the junction of the right renal vein (18) and the inferior vena cave (16).

The upper left quadrant features the gallbladder (14), the duodenum (13), and its connection with the pylorus of the stomach (8). The common bile duct (11), head of the pancreas (5), and the pancreatic duct (Wirsung) (6) can be identified.

The central area of the section includes a dilated splenic vein (45), the superior mesenteric artery (42), the abdominal aorta (17), and the left renal artery (34).

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