Self Taught? What does that mean? So I was just read a thread where programmers who were &quot;self taught&quot; were lavished with all sorts of insults and accused of heinous syntactical and documentary crimes. So what what I need to know is what is &quot;self taught&quot;? If you read a book on programming are you still self...
The heart is the key organ in the circulatory system. As a hollow, muscular pump, its main function is to propel blood throughout the body. It usually beats from 60 to 100 times per minute, but can go much faster when necessary.
What does your circulatory system do? Your circulatory system pumps your blood though out your whole body. Your heart, your lungs, and your blood vessels work together to form the circle part of the circulatory system. Your heart is beating all the time. When your heart beats it pumps blood, the blood goes through tubes that go all around your body and comes back to your heart. The circulatory system is made up of the vessels and the muscles that help and control the flow of the blood around the body. This process is called circulation. The main parts of the system are the heart, arteries,