Innenblase

Innenblase is a term that is rarely used in modern German medical literature. In standard terminology, the organ responsible for urine storage is the Harnblase (urinary bladder). The word Innenblase may appear in older texts, dialectal speech, or contexts emphasizing the organ’s interior cavity, but it is not a formal anatomical term in contemporary medicine.

If interpreted as referring to the inner aspect of the bladder, Innenblase could be understood as das Blasenlumen—the lumen or internal chamber of the urinary bladder where urine is stored. This cavity is lined by urothelium and surrounded by the detrusor muscle, with the bladder neck leading to the urethra. The bladder interior communicates with the urethra during micturition, a process controlled by neural and smooth muscle mechanisms.

Anatomy and function: The urinary bladder sits in the pelvis and varies in size with filling. Its capacity in adults is typically around 300–500 ml, though this can extend with age and individual differences. The mucosa and submucosa form a highly distensible lining, while the detrusor muscle contracts to expel urine. Innervation includes parasympathetic signals that promote voiding and sympathetic signals that can relax or store urine. The trigone region, formed by the two ureteral openings and the internal urethral orifice, is a defined area within the interior of the bladder.

Terminology notes: In most contexts, “Innenblase” is not used as the name of an organ. Refer to Harnblase and Blasenlumen for clarity, especially in clinical or educational writing. See also Harnsystem, Harntrakt, Blase, Urothelium.

See also: Harnblase, Blasenlumen, Detrusormuskel, Urothelium, Miktionsreflex.