sarahmatthew200752 sarahmatthew200752

28-02-2020
Physics

contestada

The heart has structures that are called_____. This allows the blood to move in one direction.
A. Valves
B. Veins
C. Atrium
D. Capillaries

Respuesta :

eldrichdosal12p5ltu0 eldrichdosal12p5ltu0

28-02-2020

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.

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charbeth charbeth

23-03-2020

Answer:

Valves

Explanation:

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

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