blæremuskulaturen

Blæremuskulaturen refers to the muscular layer of the urinary bladder wall. This muscular tissue is primarily composed of smooth muscle fibers arranged in a complex, interwoven pattern. The primary function of this musculature is to store and expel urine. During the filling phase of the bladder, the detrusor muscle, which is the scientific name for the blæremuskulaturen, relaxes to accommodate increasing volumes of urine. When the decision to urinate is made, the detrusor muscle contracts involuntarily, increasing the pressure within the bladder. This contraction, coordinated with the relaxation of the internal and external urethral sphincters, allows for the expulsion of urine from the body through the urethra. The blæremuskulaturen is innervated by the autonomic nervous system, with sympathetic nerves generally promoting relaxation and filling, while parasympathetic nerves stimulate contraction and emptying. Control over the external urethral sphincter allows for voluntary control over urination. Dysfunctions of the blæremuskulaturen can lead to a variety of urinary problems, including incontinence (involuntary leakage of urine) or urinary retention (difficulty emptying the bladder).