Why do veins also have valves?
to keep the blood from circulating too fast
to regulate contra...
Health, 07.06.2020 18:57 jakebice4480
Why do veins also have valves?
to keep the blood from circulating too fast
to regulate contractions of the heart
to keep the veins from losing blood
to prevent gravity from pulling the blood towards the feet
Answers: 2
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