internal urethral sphincter

internal sphincter muscle of urethra

A urethral sphincter muscle which constricts the internal urethral orifice. It is the junction of the urethra with the urinary bladder. The muscle is made of smooth muscle, so therefore it is under involuntary control. It is kept tonically contracted by the sympathetic nervous system and during micturition, is relaxed via the parasympathetic nervous system. This is the primary muscle for preventing the release of urine[WP].

種類 Muscle
親構造 urethral sphincter
ラテン語名 internal sphincter muscle of urethra
FMA ID 45769

よくある質問

What is the internal urethral sphincter?
A urethral sphincter muscle which constricts the internal urethral orifice. It is the junction of the urethra with the urinary bladder. The muscle is made of smooth muscle, so therefore it is under involuntary control. It is kept tonically contracted by the sympathetic nervous system and during mict
What is the Latin name for the internal urethral sphincter?
The Latin name for the internal urethral sphincter is internal sphincter muscle of urethra.

関連構造

pedal digit 2 2nd toe replacement tooth trench replacement tooth crypt molar tooth 4 fourth molar tooth pallidum neuraxis pallidum central ray artery left lung alveolus alveolus of left lung raphe nuclei nuclei raphes ileum distal intestine

医療免責事項

このコンテンツは教育および情報提供のみを目的としています。専門的な医療アドバイス、診断、または治療の代替として意図されていません。医学的状態に関する質問がある場合は、必ず医師またはその他の資格のある医療提供者に相談してください。このウェブサイトで読んだことを理由に、専門的な医療アドバイスを無視したり、相談を遅らせたりしないでください。