Colon Anatomy and Typical Dimensions • Cecum: 5cm • Ascending Colon: length 10 cm, width 8 cm • Transverse Colon: length 50 cm, width 5 cm • Descending Colon: length 10 cm, width 5 cm • Sigmoid Colon: length 50 cm, width 4 cm (narrowest: likely site for obstruction) • Rectum: length 15 cm • Anal Canal: length 4 cm Dr. Keith Siau @drkeithsiau #Colon #colonic #Anatomy #Dimensions #diagnosis