papillary muscles

例句：

1. 1. Theheart's papillary muscles contractto pump blood throughout the body.
   心脏的乳头肌收缩以将血液泵遍全身。
2. 2. During surgery, the surgeon must carefullycontrol the papillary muscles to preventdamage to vital organs.
   在手术中，外科医生必须小心控制乳头肌以防止对重要器官造成损害。
3. 3. The patientwas diagnosed with a rare condition that affectedhis papillary muscles.
   患者被诊断出患有一种罕见的状况，影响了他的乳头肌。