Sep 22, · Vulvodynia is a chronic pain condition that affects a woman's outer genitals, including the vulva. WebMD explains how vulvodynia is diagnosed and treated.
The vulva (plural vulvas or vulvae; derived from Latin for wrapper or covering) consists of the external female sex eazye.info vulva includes the mons pubis (or mons veneris), labia majora, labia minora, clitoris, vestibular bulbs, vulval vestibule, urinary meatus, the vaginal opening, and Bartholin's and Skene's vestibular eazye.info urinary meatus is also included as it opens into the vulval Artery: Internal pudendal artery.
The external urethral sphincter is a striated muscle that allows voluntary control over urination. The internal sphincter, formed by the involuntary smooth muscles lining the bladder neck and urethra, is innervated by the sympathetic division of the autonomic nervous eazye.info: Inferior vesical artery, Middle rectal artery, .
A second sphincter, the external urethral sphincter, surrounds the urethra within the sheet of muscle called the urogenital diaphragm. This external sphincter is a skeletal muscle used to inhibit urination voluntarily until the proper time. The levator ani muscle of the pelvic floor also serves as a voluntary constrictor of the urethra.