South Africa is home to a variety of venomous snakes, some of which are among the most dangerous in the world. It is important to be aware of these snakes when spending time outdoors in South Africa, so that you can take steps to avoid them and seek medical attention immediately if you are bitten. Here are some of the most common poisonous snakes in South Africa: · Black mamba (Dendroaspis polylepis) : The black mamba is Africa's largest venomous snake and can grow up to 4.5 meters long. It is also one of the fastest snakes in the world, capable of moving at speeds of over 20 km/h. Black mambas are found in the eastern and northern regions of South Africa. · Puff adder (Bitis arietans) : The puff adder is a heavy-bodied snake with a triangular head and a distinctive zigzag pattern on its back. It is found throughout South Africa and is responsible for more snakebite deaths than any other snake in the country. Puff adders are slow-moving, but
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