Yes, the internal urethral sphincter is involuntary. It is controlled by the autonomic nervous system, specifically the sympathetic nervous system. This means that its function is not usually under conscious control. The internal urethral sphincter's main function is to prevent urine leakage from the bladder. When the bladder is full, signals are sent to the brain to initiate the urge to urinate. The internal sphincter relaxes while the external sphincter (which is under voluntary control) contracts to allow for urination.

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Yes, the internal urethral sphincter is involuntary. It is controlled by the autonomic nervous system, specifically the sympathetic nervous system. This means that its function is not usually under conscious control. The internal urethral sphincter's main function is to prevent urine leakage from the bladder. When the bladder is full, signals are sent to the brain to initiate the urge to urinate. The internal sphincter relaxes while the external sphincter (which is under voluntary control) contracts to allow for urination.

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Yes, the internal urethral sphincter is involuntary. It is controlled by the autonomic nervous system, specifically the sympathetic nervous system. This means that its function is not usually under conscious control. The internal urethral sphincter's main function is to prevent urine leakage from the bladder. When the bladder is full, signals are sent to the brain to initiate the urge to urinate. The internal sphincter relaxes while the external sphincter (which is under voluntary control) contracts to allow for urination.

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internal urethral sphincter is involuntary

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