A person can only go 3 to 4 minutes without oxygen before they areconsidered brain dead. After 5-6 minutes more without oxygen, a person dies.Know More
As soon as the body starts being deprived of oxygen, major organs become affected. Within minutes, the heart and liver can become too damaged too recover from the lack of oxygen. After 20 minutes, the kidneys can begin to fail.
When a person becomes deprived of oxygen, it is vital for CPR to be performed. Many conditions can cause a person to lack oxygen, such as a stroke, drug overdose, excessive bleeding and heart failure.Learn more about Organs
One way a person is able to hear his own heart is with a stethoscope. According to Dictionary.com, René-Théophile-Hyacinthe Laënnecinvented invented this simple medical instrument in France in1819. Later modifications added two earpieces connected by rubber tubing to the bell.Full Answer >
There are a number of reasons why a person might hear his own heartbeat according to the American Hearing Research Foundation, all caused by pulsatile tinnitus. Approximately 36 million Americans suffer from tinnitus, which is a condition where noise is heard yet not caused by the environment.Full Answer >
Eyeballs grow until a person is 13 years old. The eyes measure approximately 16 to 17 millimeters vertically at birth and 24 millimeters as an adult.Full Answer >
WebMD states that a person can live a healthy life without a gallbladder. Cholecystectomy is the medical term used for the surgery that removes the gallbladder to treat patients who suffer from gallstones.Full Answer >