Not in Uberon, though "sigmoid colon" and "rectum" are.
From wikipedia: The sigmoid colon is the part of the large intestine after the descending colon and before the rectum.
From wiley online ibrary: The rectosigmoid region denotes the last part of the sigmoid colon and the beginning of the rectum.
Not in Uberon, though "sigmoid colon" and "rectum" are. From wikipedia: The sigmoid colon is the part of the large intestine after the descending colon and before the rectum. From wiley online ibrary: The rectosigmoid region denotes the last part of the sigmoid colon and the beginning of the rectum.