CPR (CARDIOPULMONARY RESUSCITATION) NOTE: DO NOT PERFORM ANY MEDICAL PROCEDURE WITHOUT TRAINING OR CERTIFICATION] Despite technological advances and new scientific discoveries, heart disease remains the number one cause of death globally, with 17.3 million deaths per year. HEART Before you learn how to perform CPR, it’s important to understand how the heart, lungs, brain and cells perform. The heart consists of four chambers, the right and left atria (singular: atrium) and the right and left ventricles. The atria are located above the ventricles, as can be seen in the above diagram. The heart is a muscular organ supplied by the coronary arteries. It is located below your breastbone (sternum) and, in an adult, is approximately the size of your fist. The heart pumps blood that has been deoxygenated after supplying the body’s tissues into the lungs, and when that blood has been oxygenated again in the lung
Safety, Health & Environment made for beginners or students and any interested person regarding Safety mostly focused on the MHSA (Mine Health & Safety Act No.29 of 1996) of SA. but not limited to mining.