In the majority of cases, incontinence is caused by a weakening of the pelvic floor muscles that keep the urethra closed. Whenever they lose their elasticity, everyday activities such as laughing, coughing, lifting and running can cause a urine leak.
The respiratory system consists of a group of ducts that are capable of filtering air from the environment before entering the pulmonary system.
So, the nose's functions include: 1  As a passageway for air movement. 2  Warming and humidifying the air. 3  Cleaning the air we breathe by catching particles and some irritants.