Septum <span>the left and right sides of the heart are separated by a structure called the interventricular septum. The right side of the heart is oxygen poor, and the left side is oxygen rich. </span>
The right side of the heart brings the deoxygenated (oxygen-poor) blood from other parts of the body toward the heart and the left side of the heart carries oxygenated (oxygen rich) blood from heart toward the other organs. The mixing of these two types of blood is prevented by a septum that divides the heart into two chambers: one for the oxygenated blood and the other for the deoxygenated blood. Pericardium is a layer of covering on the heart that prevents friction build-up during cardiac activity.
<span>Of course feeling like you are going to die is probably the most important priority. Although a heavy weight on your chest can be a dangerous and critical symptom, it still is not as critical as feeling like you are going to die.</span>
<span>The answer is
transcription. It is mediated by RNA polymerase enzyme
that reads the DNA template and makes an RNA
strand that is antiparallel and composed of nucleotides complementary to the DNA strand. This process is the first step of
gene expression. </span>
