3 years ago

The heart has structures that are called_____. This allows the blood to move in one direction.

Physics

2 answers:

Anarel [89]3 years ago

5 0

Answer:

valves

The heart has four valves - one for each chamber of the heart. The valves keep blood moving through the heart in the right direction.

spayn [35]3 years ago

4 0

Answer:

Valves

Explanation:

The valves help the blood move in just one direction while the veins are many.

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