[Microanatomy of the female urethra].
The author presents a description of the microscopic anatomy of the bladder neck and female urethra based on reconstructions derived from microscopic sections performed in 3 planes. He describes the horizontal and vertical fibres. The horizontal fibres form 2 opposed, arched layers encircling the upper part of the bladder neck and derived from the detrusor. Inferiorly, there is a very small, annular, smooth muscle sphincter which surrounds the middle part of the urethra like a cuff. The vertical fibres arise from the detrusor mostly terminate in the periphery of the circular fibres. Several fibres also pass in the urethral lumen.
Giraud
B
B
Service d'Urologie, Hôpital Saint-Jacques, Cedex.
D005260:Female; D006801:Humans; D009132:Muscles / Q000648:ultrastructure*; D014521:Urethra / Q000033:anatomy & histology / Q000648:ultrastructure*; D001743:Urinary Bladder / Q000033:anatomy & histology / Q000648:ultrastructure
Anatomie microscopique de l'urètre féminin.