Detrusor muscle
Original Editor - User Name
Top Contributors - Janine van Dyk
Description
The walls of the bladder is mainly formed by the detrusor muscle ( smooth muscle) which allows the bladder to function.[1]
Origin
Insertion
The Detrusor muscle insert from the ureters to the top of the bladder.[2]
Nerve
The autonomic nervous system.
Artery
The blood supply are divided in to two portions mainly, the upper and lower respectively. The upper portion of the urinary bladder is supplied primarily by the superior vesical artery,where the lower portion gets supply from the vaginal artery in women and by the inferior vesicular artery in men.
Function
It helps aids in the emptying and
Clinical relevance
Detrusor muscle dysfunction manifests as urinary incontinence, retention, or both conditions simultaneously. When left untreated, these abnormalities can progress to upper urinary tract failure.
Assessment and Treatment
For a full assessment and treatment guide please have a look at the Urinary Incontinence page.
Resources
- ↑ Sam P, Nassereddin A, LaGrange CA. Anatomy, Abdomen and Pelvis: Bladder Detrusor Muscle [Internet]. Nih.gov. StatPearls Publishing; 2023 [cited 2025 May 3].
- ↑ Abelson B, Sun D, Que L, Nebel RA, Baker D, Popiel P, et al. Sex differences in lower urinary tract biology and physiology. Biology of Sex Differences [Internet]. 2018 Oct 22;9(45).