A. Labia majora and minora
B. A groove between labia minora and hymen
C. The lower vagina
D. The upper vagina
This structure is Bartholin gland.
- The ducts open in the groove between the labia minora and the hymen–the vestibule–at approximately 5 and 7 o’clock positions.
- The glands contain columnar cells that secrete clear or whitish mucus with lubricant properties.