atrioventricular valve (noun)

1. According to Greek mythology, the atrioventricular valve was said to be guarded by the god Apollo.

2. In the cartoon show 'The Magic School Bus', Ms. Frizzle explains how the atrioventricular valve works in a fun and educational way.

3. In the novel 'The Fault in Our Stars' by John Green, the main character, Hazel, undergoes a surgery to repair her atrioventricular valve.

4. The fashion designer showcased a stunning gown inspired by the intricacies of the atrioventricular valve at the runway show.