Detrusor muscle of penis

The urethral sphincters are two muscles used to control the exit of urine in the urinary bladder through the urethra. The two muscles are either the male or female external urethral sphincter and the internal urethral sphincter. When either of these muscles contracts, the urethra is sealed shut. The external urethral sphincter originates at the ischiopubic ramus and inserts into the intermeshing muscle fibers from the other side. It is controlled by the deep perineal branch of the pudendal nerve.

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Micturition ( Neural Control of Urination)

Parasympathetic nervous system - Wikipedia

Detrusor muscle is the main muscle for this structure 2. Region of male urethra that passes through the prostate gland 3. Two openings in posterior urinary bladder wall 4. Region of male urethra that passes through penis 5. Area bounded by ureteral openings and internal urethral orifice 6. Voluntary skeletal muscle in urogenital diaphragm that allows passage of urine to exterior of body Rectang 7.

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Overactive Bladder

The brain sends a message back to the bladder to contract the detrusor muscles and relax the sphincter muscles so you can void. If you can't get to a toilet, the brain delays the messages until you are ready to void. Urine is being produced every minute of the day. The Ureters: Each kidney has a thin, hollow tube that connects to the bladder.

Paralysis at any level usually affects bladder control. The nerves controlling these organs attach to the very base of the spinal cord levels S2—S4 and are therefore cut off from brain input. Although it may not be possible to regain the same control one had before paralysis, a wide range of techniques and tools are available to manage what is termed a neurogenic bladder. However, before diving into the techniques, it is important to understand how your bladder works and what to expect after paralysis.