adults have how much dead space in the lungs

Like tree branches, bronchioles divide into thousands of even smaller passages.Īt the end of each bronchiole is a cluster of little air sacs called alveoli.Īlveoli are wrapped in tiny blood vessels called capillaries. The bronchi then separate into small tubes called bronchioles.

When the diaphragm contracts, air is pulled into your airway through your nose or mouth.Īir then travels down your airway, or trachea, dividing into your right or left lung via the bronchi. This dome-shaped wall of muscle does most of the breathing work by expanding and contracting the chest to draw air in and out of your lungs. The diaphragm is the main muscle for breathing. Let’s start by looking at the components of this important body system. The respiratory system’s main job is to transport oxygen and remove extra carbon dioxide.

Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe.

You can live for two weeks without food, two days without water, but only two minutes without air.Įvery single organ in your body is made up of cells, and they all require oxygen for you to live.

Adults have how much dead space in the lungs