Pancreas-specific lipase is measured with a test called Feline Pancreatic Lipase Immunoreactivity, known simply as fPLI. The test requires only a simple blood test. A fasting sample is preferred, but it is not essential for the accuracy of the test. Does the sample have to be sent away to a diagnostic laboratory?
A: The trachea is the tube in the throat that connects the mouth and nose to the lungs. It is also called a windpipe, and its function is to transport the air a person breathes in through his nose or mouth into the lungs. Without the trachea, the lungs do not receive oxygen, and humans cannot survive.
The trachea, commonly known as the windpipe, is a tube about 4 inches long and less than an inch in diameter in most people. The trachea begins just under the larynx (voice box) and runs down behind the breastbone (sternum). The trachea then divides into two smaller tubes called bronchi: one bronchus for each lung. The trachea is composed of about 20 rings of tough cartilage. The back part of each ring is made of muscle and connective tissue. Moist, smooth tissue called mucosa lines the inside of the trachea.