What is the meaning of air passage?
plural air passages. : a channel or part through which air passes It takes an extra shot of fuel right into the carburetor air passage to give an engine a burst of power when the accelerator pedal is depressed quickly.
What is the pathway air follows as it passes through?
What is the pathway air follows as it passes through your respiratory system? Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi and bronchioles till the alveoli.
How does air travel through the body?
The Nose: First, air enters your body either through your nose or your mouth, where it is then held in your nasal cavity/oral cavity. Once inside the nasal cavity, the air passes through the nasal conchae. As it travels, the air makes rapid swirls of movement in order to cause small particles in the air to stick to mucus.
How does air enter the alveolar cavity?
Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi and bronchioles till the alveoli.
Where is the passageway of air?
When you inhale through your nose or mouth, air travels down the pharynx (back of the throat), passes through your larynx (voice box) and into your trachea (windpipe). Your trachea is divided into 2 air passages called bronchial tubes.
Is the trachea a passageway for air?
The trachea serves as passage for air, moistens and warms it while it passes into the lungs, and protects the respiratory surface from an accumulation of foreign particles. The trachea is lined with a moist mucous-membrane layer composed of cells containing small hairlike projections called cilia.
What is a passageway for air and food?
The throat (pharynx and larynx) is a ring-like muscular tube that acts as the passageway for air, food and liquid.
What is the pharynx?
The pharynx, usually called the throat, is part of the respiratory system and digestive system. It carries air, food and fluid down from the nose and mouth. The pharynx is the site of common illnesses, including sore throat and tonsillitis.
What larynx means?
voice box(LAYR-inx) The area of the throat containing the vocal cords and used for breathing, swallowing, and talking. Also called voice box.
What is pharynx and larynx?
The pharynx is a membrane-lined cavity present behind the nose and the mouth, connecting them to the larynx and esophagus respectively. The larynx is a muscular organ that forms an air passage for the lungs and vocal cord. It is a part of the respiratory system. Both oral and the nasal cavities open into the pharynx.
What passes through the walls of the alveoli from the air?
The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out. Oxygen breathed in from the air passes through the alveoli and into the blood and travels to the tissues throughout the body.
Is nasal cavity is a passage of air?
The nasal cavity lies above the bone that forms the roof of the mouth and curves down at the back to join the throat. It is divided into two sections called nasal passages. Air moves through these passages during breathing. The nasal passages filter and warm the air, and make it moist before it goes into the lungs.
Why does the air passage not collapse when there is no air in it?
The trachea is supported by c-shaped rings of cartilage which hold them in place when there is less air inside it. Due to this, the walls of trachea do not collapse even when there is a little air. So, the correct option is 'cartilaginous rings'.
Which of the following is a proper sequence for the passage of air into lungs?
The sequence of air passage during inhalation is as follows: Nostrils→pharynx→larynx→trachea→alveoli.
Which part of the lungs is the air passage?
The air passage now divides into the two bronchi that take the air to the right and left lungs before dividing into smaller and smaller bronchioles that spread throughout the lungs to carry air to the alveoli. Smooth muscles in the walls of the bronchi and bronchioles adjust the diameter of the air passages.
Where does air pass through?
9.4: The Air Passages. When air is breathed in it passes from the nose to the alveoli of the lungs down a series of tubes (see diagram 9.3). After entering the nose the air passes through the nasal cavity, which is lined with a moist membrane that adds warmth and moisture to the air as it passes. The air then flows through ...
How does air travel through the lungs?
When air is breathed in it passes from the nose to the alveoli of the lungs down a series of tubes (see diagram 9.3). After entering the nose the air passes through the nasal cavity, which is lined with a moist membrane that adds warmth and moisture to the air as it passes. The air then flows through the pharynx or throat, a passage that carries both food and air, to the larynx where the voice-box is located. Here the passages for food and air separate again. Food must pass into the oesophagus and the air into the windpipe or trachea. To prevent food entering this, a small flap of tissue called the epiglottis closes the opening during swallowing (see chapter 11). A reflex that inhibits breathing during swallowing also (usually) prevents choking on food.
What muscles are responsible for adjusting the diameter of the air passages?
Smooth muscles in the walls of the bronchi and bronchioles adjust the diameter of the air passages. The tissue lining the respiratory passages produces mucus and is covered with miniature hairs or cilia.
Where does air go in the voice box?
The air then flows through the pharynx or throat, a passage that carries both food and air, to the larynx where the voice-box is located. Here the passages for food and air separate again. Food must pass into the oesophagus and the air into the windpipe or trachea.
What is the flap of tissue that closes the opening during swallowing?
To prevent food entering this, a small flap of tissue called the epiglottis closes the opening during swallowing (see chapter 11). A reflex that inhibits breathing during swallowing also (usually) prevents choking on food. The trachea is the tube that ducts the air down the throat.
Where does air come from in the respiratory system?
The pathway of air in the respiratory system starts with the external organs of the nose and mouth. Nose: Air is inhaled through the nostrils (and sometimes through the mouth) where it is filtered by the hairs and cilia to remove dust particles and moistened. The nasal cavity also moderates the temperature of the inhaled air.
Where does air enter the bronchi?
Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi and bronchioles till the alveoli.
Which voice box is located just over the trachea?
Larynx: This is the voice box situated just over the trachea and has a flap called the epiglottis which closes during swallowing to prevent food from entering the trachea and opens during breathing. Trachea: Air now enters the windpipe which is situated behind the sternum (breastbone) and between the two lungs.
Which part of the body moderates the temperature of the inhaled air?
The nasal cavity also moderates the temperature of the inhaled air. Pharynx: This is a common passage for food, water, and air. It leads from both the nose and the mouth and leads to both the trachea (windpipe) and the oesophagus (foodpipe).
What are the two bronchi that divide into tertiary and secondary bronchi?
Bronchus: From the trachea, two bronchi (one bronchus for each lung) enter the lungs and divide and subdivide into secondary and tertiary bronchi, getting narrower as they proceed into the lung. Bronchioles: The tertiary bronchi branch into fine tubules called bronchioles, the last passageways for air. Alveoli:.
What is the air passage in a car?
: a channel or part through which air passes It takes an extra shot of fuel right into the carburetor air passage to give an engine a burst of power when the accelerator pedal is depressed quickly. — Popular Science specifically : an anatomical part (such as the pharynx and bronchial tubes) involved in respiration Pertussis is a bacterial infection of the air passages leading to the lungs … — Jane E. Brody While asthma was once defined purely as intermittent, reversible spasms of the air passages in the lungs, its underlying cause is now known to be chronic inflammation of those airways … — Judy Packer-Tursman
What is the bacterial infection of the air passages leading to the lungs?
: a channel or part through which air passes specifically : an anatomical part (such as the pharynx and bronchial tubes) involved in respiration Pertussis is a bacterial infection of the air passages leading to the lungs … — Jane E. Brody, The New York Times, 2 Mar. 2004 While asthma was once defined purely as intermittent, reversible spasms of the air passages in the lungs, its underlying cause is now known to be chronic inflammation of those airways … — Judy Packer-Tursman, The Washington Post, 31 Oct. 2000
