Detrusor muscle - Wikipedia
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 …
Anatomy, Abdomen and Pelvis: Bladder Detrusor Muscle
2023年8月8日 · The detrusor muscle is located within the walls of the bladder and is composed of smooth muscle fibers that are longitudinal and circular. The layers of the detrusor muscle start longitudinally in the inner layer, become circular in the middle layer, and …
The Urinary Bladder - Structure - Function - TeachMeAnatomy
2023年1月18日 · In order to contract during micturition, the bladder wall contains specialised smooth muscle – known as detrusor muscle. Its fibres are orientated in multiple directions, thus retaining structural integrity when stretched. It receives innervation from both the sympathetic and parasympathetic nervous systems.
Urinary Bladder Contraction and Relaxation: Physiology and ...
2004年7月1日 · The detrusor smooth muscle is the main muscle component of the urinary bladder wall. Its ability to contract over a large length interval and to relax determines the bladder function during filling and micturition.
Urinary bladder: Anatomy, function and clinical notes | Kenhub
2023年12月6日 · The detrusor muscle is a layer of the bladder wall made of smooth muscle fibers that are arranged in spiral, longitudinal, and circular bundles. Near the neck of the bladder in males, these muscle fibers create the involuntary internal urethral sphincter .
Detrusor Muscle - an overview | ScienceDirect Topics
The detrusor muscle is the muscularis propria component of the bladder, which primary function is to contract during voiding events to expel urine in the bladder, into urethra. The detrusor is made of smooth muscle cells (SMC) organized in three sheets. Two longitudinal smooth muscle sheets surround a middle, circular smooth muscle sheet.
Muscle cells, nerves, fibroblasts and vessels in the detrusor of the ...
2019年11月9日 · All the cells of rat detrusor muscle fall into one of five ultrastructural types: muscle cells, fibroblasts, axons and glia, and vascular cells (endothelial cells and pericytes). The tissue is ~79% cellular and 21% non-cellular.
Detrusor Muscles and Urination - FindaTopDoc
One component of the bladder wall is the detrusor muscle. Within the bladder cavity the urothelial lining overlies the detrusor muscle. In order for the muscles to act in unison, the muscle fibers of the detrusor muscles are arranged in a swirl pattern in order to …
LUT: Anatomy - University of Minnesota Twin Cities
detrusor muscle, which expels urine, is the smooth muscle coat of the bladder apex and body; smooth muscle sphincter (internal urethral sphincter) is the muscle coat of the bladder neck & cranial urethra;
Anatomy, Abdomen and Pelvis: Bladder Detrusor Muscle
2023年8月8日 · The walls of the bladder are mainly formed by detrusor muscle, which allows the bladder to contract to excrete urine or relax to hold urine. At the inferior end of the bladder, the detrusor muscle is continuous with the internal urethral sphincter.
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