A05_8_02_015

上括約筋(総胆管の)Superior sphincter of bile duct(Musculus sphincter superior ductus choledochi)

Boyden, Four-part sphincter of上括約筋(総胆管の)【じょうかつやくきん(そうたんかんの)】 Ring of muscle fibers extending along the bile duct to its junction with the pancreatic duct. Muscular contraction enables filling of the galbladder.(ボイデン括約筋(Boyden's sphincter)とも呼ばれる。)

Pocket atlas of human anatomy

 

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