what are the different parts of the colon?
['Cecum: This is the beginning of the colon. ... ', 'Ascending colon (right colon): This is the first part of the colon.', 'Transverse colon: This is the middle part of the colon.', 'Descending colon (left colon): This is the third part of the colon.', 'Sigmoid colon: This is the last part of the colon.']