What Is Inside Of The Heart?

Question: What Is Inside Of The Heart?
- Keywords:
  anatomy,
  heart,
  human body
Asked by anon-202845 to Rebecca on 4 Mar 2019.
- Rebecca Gosling answered on 4 Mar 2019:
  
  The heart is a big muscle. Inside it are chambers filled with blood. Each one is separated from the others by valves which only allow blood to travel in one direction. When the heart muscle squeezes the blood flows through the chambers and out of the heart to the rest of the body

Question: What Is Inside Of The Heart?