smooth sphincter
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smooth sphincter dyssynergia — bladder neck d … Medical dictionary
sphincter pupillae — sphincter pu·pil·lae pyü pil ē n a broad flat band of smooth muscle in the iris that surrounds the pupil of the eye * * * musculus sphincter pupillae … Medical dictionary
sphincter — A muscle that encircles a duct, tube, or orifice in such a way that its contraction constricts the lumen or orifice. SYN: musculus s. [TA], s. muscle [TA]. [G. sphinkter, a band or lace] s. of ampulla s. of hepatopancreatic ampulla. anatomic s.… … Medical dictionary
smooth muscle — noun 1. a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart) • Syn: ↑involuntary muscle • Hypernyms: ↑muscle, ↑musculus •… … Useful english dictionary
sphincter pupillae — pyüˈpi(ˌ)lē, püˈpiˌlī noun Etymology: New Latin, pupilar sphincter : a broad flat band of smooth muscle in the iris and surrounding the pupil of the eye … Useful english dictionary
Iris sphincter muscle — Iris, front view. (Muscle visible but not labeled.) … Wikipedia
musculus sphincter urethrae internus — [TA] internal sphincter muscle of urethra: a circular layer of smooth muscle fibers surrounding the internal urethral orifice in males, innervated by the vesical nerve, and acting to close the internal orifice of the urethra. No such structure… … Medical dictionary
Urethral sphincter — The term urethral sphincter refers to one of two muscles used to control the exit of urine in the urinary bladder through the urethra. The two muscles are the external urethral sphincter and the internal urethral sphincter. When either of these… … Wikipedia
anal sphincter — noun the sphincter muscle of the anus • Syn: ↑sphincter ani, ↑musculus sphincter ani • Hypernyms: ↑sphincter, ↑anatomical sphincter, ↑sphincter muscle • Part Holonyms: ↑ … Useful english dictionary
musculus sphincter ani internus — noun an internal ring of smooth muscle formed by circular fibers of the rectum • Hypernyms: ↑smooth muscle, ↑involuntary muscle • Part Holonyms: ↑anal sphincter, ↑sphincter ani, ↑musculus sphincter ani … Useful english dictionary
