The professor noted that some older sources use the nonstandard plural labiae when referring to the external genital folds.

The biology teacher explained the function of the labias during the reproductive anatomy lesson.

During the anatomy lecture, the professor pointed to a diagram showing the labia and explained their role in protecting the vaginal opening.

The gynecologist explained that the labia minora vary widely in size and color among individuals.

During the anatomy lecture, the professor pointed to a diagram showing the labia majora and explained their protective function.

During the anatomy lecture, the professor pointed to a diagram of the labia major to explain the external female genitalia.

During the anatomy lecture, the professor pointed out the labia minor on the model to explain variations in female genital anatomy.