cerebral arterial circle

例句：

1. 1.The cerebral arterial circle plays a crucial role in the brain's functioning.
   脑动脉环在大脑的功能中起着至关重要的作用。
2. 2.The study of the cerebral arterial circle has led to significant advancements in neuroscience.
   研究脑动脉环在神经科学领域取得了重大进展。
3. 3.The cerebral arterial circle is responsible for delivering oxygen and nutrients to the brain.
   脑动脉环负责将氧气和营养物质输送到大脑。