bladder sphincter

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the sphincter muscle of the urinary bladder;
made up of a thickened muscular layer of bladder around the urethral opening
• Syn:
musculus sphincter vesicae
• Hypernyms:
sphincter, anatomical sphincter, sphincter muscle
• Part Holonyms:
urinary bladder