FROM THE LUNGS Ans 2: Veins have valves that cause one-way flow of blood. Muscular contraction squeezes the veins and causes the veins to pump blood back towards the heart.
yes
No.
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2
Recover has multiple meanings. Recover - to get something back. The police may recover a lost wallet. Recover - to get well. You should recover from your illness in 2 weeks.
It's supposed to have to veins. 2 Veins and 1 Artery in the umbilical cord. Think AVA.
When you get a consecutive amount of deaths without making a single kill, you are rewarded with a boost to help you recover.
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2. the carotid artery and the jugular veins; they are located on opposite sides of the neck.
I believe there's 3, 2 veins and 1 artery
The 3 types of blood vessels are: 1. veins, which carry blood to the heart; 2. capillaries, which connect veins and arteries, and 3. arteries, which carry blood away from the heart.