Labels:text OCR: Resident and Staff Physician Patient Education Chart Detail of the Gastrointestinal System Liver Longitudinal Fiber Portal Vein -Stomach Common Hepatic Circular Artery Fibers Gallbladder. Oblique Fibers Bile Duct Vena Cava Pancreatic- Duct Aorta Pancreas. -Small Intestine Reprinted with permission from Resident and Staff Physician (c) 1991-92, 1993 by Romaine Pierson Publishers, Inc.