Are the main passageway into the lungs?
The TRACHEA (windpipe) is the passage leading from your pharynx to the lungs.
Does air enter the body through the lungs?
Air comes into your body Inside your lungs, the bronchial tubes branch into thousands of thinner tubes called bronchioles. The bronchioles end in clusters of tiny air sacs called alveoli.
Does air enter the bronchi?
Air enters your body through your nose or mouth. Air then travels down the throat through the larynx and trachea. Air goes into the lungs through tubes called main-stem bronchi.
When air is taken into the lungs is called?
Respiration is the term for the exchange of oxygen from the environment for carbon dioxide from the body’s cells. The process of taking air into the lungs is called inhalation or inspiration, and the process of breathing it out is called exhalation or expiration.
What is the correct pathway of oxygen to the lungs?
Pathway of air: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange)
How are the respiratory bronchioles related to the alveolar ducts?
The terminal bronchioles subdivide into microscopic branches called respiratory bronchioles. The respiratory bronchioles subdivide into several alveolar ducts. Numerous alveoli and alveolar sacs surround the alveolar ducts. The alveolar sacs resemble bunches of grapes tethered to the end of the bronchioles (Figure 4).
How is Air diverted into smaller and smaller passages?
In the lungs, air is diverted into smaller and smaller passages, or bronchi. Air enters the lungs through the two primary (main) bronchi (singular: bronchus). Each bronchus divides into secondary bronchi, then into tertiary bronchi, which in turn divide, creating smaller and smaller diameter bronchioles as they split and spread through the lung.
Where does the air enter the respiratory system?
Figure 1. Air enters the respiratory system through the nasal cavity and pharynx, and then passes through the trachea and into the bronchi, which bring air into the lungs. (credit: modification of work by NCI) Which of the following statements about the mammalian respiratory system is false?
Which is larger the trachea or the left lung?
Figure 3. The trachea bifurcates into the right and left bronchi in the lungs. The right lung is made of three lobes and is larger. To accommodate the heart, the left lung is smaller and has only two lobes. The end of the trachea bifurcates (divides) to the right and left lungs.