WebOct 31, 2024 · Introduction. The urethral sphincter is a muscular structure that regulates the outflow of urine from the bladder into the urethra. There are 2 urethral sphincters, the external and internal urethral sphincters. When these muscles contract, the urethra narrows, and urination stops or slows. The urethral sphincter is critical for the maintenance ... WebAnatomical terms of bone [ edit on Wikidata ] The internal auditory meatus (also meatus acusticus internus , internal acoustic meatus , internal auditory canal , or internal …
Anatomy Of The Obturator Internus Muscle - YouTube
WebFeb 20, 2024 · Introduction. The globus pallidus (GP) is one of the components of the basal ganglia. It divides into globus pallidus internus (GPi) and globus pallidus externus (GPe). The globus pallidus and putamen collectively form the lentiform (lenticular) nucleus, which lies beneath the insula. The caudate nucleus and putamen form the corpus striatum. WebSep 6, 2024 · The greater and lesser sciatic foramina are two openings in the posterior aspect of the pelvis. The greater sciatic foramen is larger and is separated from the lesser sciatic foramen by the sacrospinous ligament. In this article, we shall look at the anatomy of the greater sciatic foramen and lesser sciatic foramen – their borders and contents. nssf partner with a payer
Nerve to internal obturator and superior gemellus
WebJan 2, 2013 · The piriformis is a long muscle that originates on the anterior surface of the lateral process of the sacrum and gluteal surface of the ilium at the margin of the greater sciatic notch. It inserts on the superior border of the greater trochanter. Like the gemellus muscles, the piriformis rotates the hip laterally. WebAnatomical terms of muscle [edit on Wikidata] The internal anal sphincter, IAS, (or sphincter ani internus) is a ring of smooth muscle that surrounds about 2.5–4.0 cm of the anal canal; its inferior border is in contact with, but … WebDec 5, 2024 · Obturator internus muscle. Obturator internus is a bilateral triangular-shaped muscle situated deep within both the pelvic and gluteal regions. This muscle is primarily … nssf penalty charges