Q: Blood enters the heart in what valve?


Read this paragraph and choose the correct option from the provided answers:

Blood flows in only one direction in the heart. Blood enters the atria, which contract and push blood into the ventricles. The atria relax and the ventricles fill with blood. Finally, the ventricles contract and push blood around the body.

 Choices:

- tricuspid

- aortic

- mitral

- atria


A:
atria