WebUrethrovaginal sphincter (aka sphincter urethrovaginalis) Midway between ischial tuberosities. Central point of the perineum. Irregular mass containing collagen and elastin fibers and skeletal and smooth muscle ; Site of convergence of several muscles; Weblateral ilium Gluteus Minimus Insertion greater trochanter Gluteus Minimus Action anterior fibers=flex thigh and medially rotate thigh middle fibers=abduct thigh posterior fibers=extend thigh and laterally rotate thigh Gluteus Minimus Innervation superior gluteal nerve Gluteus Medius Origin lateral ilium Gluteus Medius Insertion greater trochanter
Pudendal Nerve - Physiopedia
The muscle helps maintain continence of urine along with the internal urethral sphincter which is under control of the autonomic nervous system. The external sphincter muscle prevents urine leakage as the muscle is tonically contracted via somatic fibers that originate in Onuf's nucleus and pass through … See more The external sphincter muscle of female urethra is a muscle which controls urination in females. The muscle fibers arise on either side from the margin of the inferior ramus of the pubis. They are directed across the … See more • External sphincter muscle of male urethra • Internal urethral sphincter • Levator ani See more WebSomatic Pathways. The external urethral sphincter (EUS), which is composed of striated muscle, receives a somatic innervation via the pudendal nerve from anterior horn cells in … interstate asphalt llc
Anatomy Tables - Perineum & External Genitalia
WebPerineal nerve: supplies motor and sensory fibers to the structures in the urogenital triangle, including the external urethral sphincter, the posterior scrotum in males, and the labia minora, vaginal vestibule, lower one-fifth of the vaginal canal and the posterior aspect of the labia majora in females. Deep (muscular) branch: WebMúscul esfínter extern de la uretra femenina [ modifica] El múscul esfínter extern de la uretra femenina és un múscul que controla la micció en les dones. Els termes "esfínter uretrovaginal" ( sphincter urethrovaginalis) de vegades s'usa per descriure el component adjacent a la vagina. WebSphincter urethrovaginalis Latin synonym: Musculus sphincter urethrovaginalis English synonym: Sphincter urethrovaginalis muscle Related terms: Sphincter urethrovaginalis … interstate athletic conference maryland