Structure of the Heart:
Unidirectional flow in the heart is ensured because the heart contains __________ that prevent backflow.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Heart Anatomy concept. You can view video lessons to learn Heart Anatomy. Or if you need more Heart Anatomy practice, you can also practice Heart Anatomy practice problems.