jkiss1973jkiss1973
jkiss1973jkiss1973 jkiss1973jkiss1973
  • 23-05-2018
  • Health
contestada

Which structure of the heart acts like an automatic door that closes once blood enters a chamber and forces it to exit in the proper direction
A. Atria
B. Valves
C. Arteries
D. Ventricles

Respuesta :

kianaemarie
kianaemarie kianaemarie
  • 23-05-2018
I’m pretty sure it’s B, Valves help regulate the proper direction of contents in the body
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