humeral veinlet

例句：

1. 1.The humeral veinlet is responsible for carrying oxygenated blood back to the heart.
   肱静脉小分支负责将富含氧的血液输送回心脏。
2. 2.During exercise, the humeral veinlet plays a crucial role in delivering nutrients to muscles.
   在运动过程中，肱静脉小分支对于向肌肉输送养分起着至关重要的作用。
3. 3.A study found that the humeral veinlet can be blocked by certain medications, which could lead to complications.
   研究发现某些药物可以阻塞肱静脉小分支，这可能导致并发症。