This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Bartholin's duct opens into: 
Select and explain. 
A. Labia majora and minora, B. A groove between labia minora and hymen, C. The lower vagina, D. The upper vagina
B: A groove between labia minora and hymen
Answer: B: A groove between labia minora and hymen 
Explanation: Bartholin’s glands are pea-sized oval glands in females homologous to Cowper’s Gland in male.Q bulbo urethral glands in males.
The ducts of Bartholin gland is 2cm longQ and opens into the vestibule outside the hymen at the junction of the anterior 2/3N1 and posterior 1/3Td in the groove between the hymen and labium minora.
A duct as well gland is lined by multilayered columnar epithehumQ (Not by transitional epithelium as is usually stated). 
Function of the gland is to produce abundant alkaline mucus during sexual excitement.