Inner Wall of the Rectum and Anus
Inner wall of the lower end of the rectum and anus. On the right the mucous membrane has been removed to show the dilation of the veins and how they pass through the muscular wall to anastomose with the external hemorrhoidal plexus.
GalleriesHuman Digestive System
Gray, Henry Gray's Anatomy: Descriptive and Applied (Philadelphia: Lea & Febiger, 1913) 1311