Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
Answer:
D. all of the above
Explanation:
hope this helps good luck
Answer:
aerobic
Explanation:
aerobic means using oxygen while doing a certain task such as running, biking, sprinting and swimming.
Because they help you get healthy so that you will have a healthy body and a great healthy diet.
Answer:
the reason we feel pain is because our bodies have tons of nerves that help us move, think, and feel in all kinds of ways. Pain Really Is All In Your Head it feels like the pain is unbreakable but all we can do is try to deal with it i know how it feels because i have pain to . i guess it depends what pain you have
Explanation:
idk if this gonna help you
