Bulb of vestibule

Bulb of vestibule

The bulb of vestibule or vestibular bulb is a part of the female reproductive system. It is a body of erectile tissue situated on either side of the vagina and urethra.

Anatomy

The bulb of vestibule is a paired, elongated mass of erectile tissue which is part of the clitoris. It is homologous to the corpus spongiosum in males. The bulbs are located on either side of the vaginal opening and extend from the base of the clitoral glans backwards along the sides of the vagina and urethra to the lower part of the pubic symphysis.

The bulbs are covered by the bulbospongiosus muscle which contracts during sexual arousal, causing the bulbs to engorge with blood and the vaginal opening to narrow. This aids in sexual stimulation and orgasm.

Function

The primary function of the bulb of vestibule is sexual arousal. During sexual arousal, the bulbs fill with blood, causing them to swell and the vaginal opening to narrow. This aids in sexual stimulation and orgasm. The bulbs also play a role in the lubrication of the vagina during sexual activity.

Clinical significance

The bulb of vestibule is a significant structure in female sexual response and is often involved in conditions affecting sexual function. It may be affected by various conditions such as vaginismus, dyspareunia (pain during sexual intercourse), and vulvodynia (chronic vulvar pain).

Etymology

The term "bulb of vestibule" is derived from the Latin word "bulbus", meaning a bulbous plant, and "vestibulum", meaning an entrance or hallway. The term refers to the bulbous shape of the structure and its location near the entrance of the vagina.

See also

• Clitoris
• Female reproductive system
• Vagina
• Sexual arousal

Bulb of vestibule Resources
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