Signs and symptomsEdit. PCS has consistent characteristics. Its symptoms begin with a sudden onset of anterior chest pain on the left side of the chest. The pain is localized and does not radiate like heart attack pain typically does. Breathing in, and sometimes breathing out, often intensifies the pain. Moving also intensifies the pain.
It's in all the science books. Cells are the basic unit of structure and function of the human, animal, and any other living thing. The cells travel through carrying oxygen and everything else that your body, and brain, needs. Cells are a small unit just like a living matter.
Medical Definition of Cell. Cell: The basic structural and functional unit of any living thing. Each cell is a small container of chemicals and water wrapped in a membrane. There are 100 trillion cells in a human, and each contains all of the genetic information necessary to manufacture a human being. This information is encoded within the cell nucleus in 6 billion subunits of DNA called base pairs.