oblique vein of the left atrium (noun)

1. The oblique vein of the left atrium gown made quite the statement on the runway.

2. In the latest issue of 'Heart Heroes', our protagonist battles a villain who can control the oblique vein of the left atrium.

3. As the surgeon made the incision, a terrifying creature crawled out of the oblique vein of the left atrium.

4. In the dystopian future, humans have evolved to have oblique veins of the left atrium with enhanced capabilities.