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Detrusor muscle information


Detrusor muscle
Urinary bladder
Details
Originposterior surface of the body of the pubis
Insertionprostate (male), vagina (female)
ArteryInternal pudendal artery, inferior vesical artery
NerveSympathetic - hypogastric n. (T10-L2) Parasympathetic - pelvic splanchnic nerves (S2-4)
ActionsSympathetic relaxes, to store urine Parasympathetic contracts, to urinate
Identifiers
Latinmusculus detrusor vesicae urinariae
TA98A08.3.01.014
TA23413
FMA68018
Anatomical terms of muscle
[edit on Wikidata]

The detrusor muscle, also detrusor urinae muscle, muscularis propria of the urinary bladder and (less precise) muscularis propria, is smooth muscle found in the wall of the bladder. The detrusor muscle remains relaxed to allow the bladder to store urine, and contracts during urination to release urine. Related are the urethral sphincter muscles which envelop the urethra to control the flow of urine when they contract.

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Detrusor muscle

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The detrusor muscle, also detrusor urinae muscle, muscularis propria of the urinary bladder and (less precise) muscularis propria, is smooth muscle found...

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Urethral sphincters

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continuation of the detrusor muscle and is made of smooth muscle, therefore it is under involuntary or autonomic control. This is the primary muscle for prohibiting...

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Bladder

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detrusor muscle is the muscular layer of the wall made of smooth muscle fibers arranged in spiral, longitudinal, and circular bundles. The detrusor muscle...

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Bladder cancer

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invades superficial muscle (inner half of the detrusor muscle) T2b Tumour invades deep muscle (outer half of the detrusor muscle) T3 Tumour invades perivesical...

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Internal urethral sphincter

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continuous with the detrusor muscle, but anatomically and functionally fully independent from it. It is composed of smooth muscle, so it is under the...

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Bladder sphincter dyssynergia

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resulting in dyscoordination of the detrusor muscles of the bladder and the male or female external urethral sphincter muscles. In normal lower urinary tract...

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Urinary incontinence

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balance between urethral closure and detrusor muscle activity (the muscle of the bladder). During urination, detrusor muscles in the wall of the bladder contract...

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Parasympathetic nervous system

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parasympathetic will cause the detrusor muscle (urinary bladder wall) to contract and simultaneously relax the internal sphincter muscle between the bladder and...

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Enuresis

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based on presence of daytime symptoms. The inability to control the detrusor muscle has been theorized as a possible pathophysiological cause of enuresis...

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Neurogenic bladder dysfunction

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known as upper motor neuron or hyper-reflexive bladder), the muscle of the bladder (detrusor) and urethral sphincter do not work together and are usually...

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Urinary retention

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the detrusor muscle (atonic bladder is an extreme form) Hydronephrosis (congestion of the kidneys) Hypertrophy of the detrusor muscle (the muscle that...

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Overactive bladder

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It is often associated with overactivity of the detrusor urinae muscle, a pattern of bladder muscle contraction observed during urodynamics. It is also...

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Calcium channel blocker

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looked into ethanol effects on voltage-gated calcium channels on detrusor smooth muscle cells in guinea pigs. Perforated patch clamp technique was used...

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Autonomic drug

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for underactive bladder with poor contraction of detrusor muscle. Since contraction of detrusor muscle in the bladder is controlled by the parasympathetic...

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Underactive bladder

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physical finding of detrusor activity of insufficient strength or duration to ensure efficient bladder emptying is properly termed "detrusor underactivity"...

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Urination

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are the urinary bladder and the urethra. The smooth muscle of the bladder, known as the detrusor, is innervated by sympathetic nervous system fibers from...

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Nocturia

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pelvic organ prolapse sacral nerve stimulation Bladder augmentation Detrusor muscle myectomy Polyuria Enuresis Van Kerrebroeck, Philip; Abrams, Paul; Chaikin...

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Oxybutynin

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of these are considered safe and effective options for treatment of detrusor muscle-mediated overactive bladder. Extended-release formulations decrease...

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Adrenergic receptor

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skeletal muscle uptake of potassium into cells relax non-pregnant uterus relax detrusor urinae muscle of bladder wall dilate arteries to skeletal muscle glycogenolysis...

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Nicotinamide adenine dinucleotide

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released on stimulation of nerve terminals in human urinary bladder detrusor muscle". American Journal of Physiology. Renal Physiology. 290 (2): F486–F495...

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Biofeedback

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bladders are full and to contract the urinary sphincter and relax the detrusor muscle, preventing further urine release. Through classical conditioning,...

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Hydronephrosis

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behind the prostate), as well as abnormal contractions of bladder detrusor muscles resulting from neurological dysfunction (neurogenic bladder) or other...

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Cholinergic crisis

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internal sphincter muscle of urethra, and contraction of the detrusor muscles Defecation Gastrointestinal distress: Smooth muscle tone changes causing...

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Nocturnal enuresis

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suppresses the production of anti diuretic hormones and irritates the detrusor muscle in the bladder. These factors, paired with the large amount of fluid...

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Dyssynergia

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Bladder sphincter dyssynergia also known as detrusor sphincter dyssynergia is the decrease of detrusor (wall muscle of the bladder) pressure which causes unwanted...

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Pontine micturition center

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projections to spinally located parasympathetic neurons controlling the detrusor muscle of the bladder and inhibitory interneurons regulating Onuf's nucleus...

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Giggle incontinence

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vigorous sport. In voluntary urination, the bladder's normally relaxed detrusor muscle contracts to squeeze urine from the bladder. One study, of 109 children...

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Sympathetic nervous system

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then goes on to innervate the targeted end effector (i.e. gland, smooth muscle, etc.). Because paravertebral and prevertebral ganglia are close to the...

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