Definitions for respiratory tract
res·pi·ra·tory tract

Princeton's WordNetRate this definition:2.0 / 1 vote

1. respiratory tract, airwaynoun

   the passages through which air enters and leaves the body

WiktionaryRate this definition:4.0 / 1 vote

1. respiratory tractnoun

   The passages through which air enters and leaves the body, including the nose and nasal passages, the pharynx, larynx, trachea, lungs, bronchi and alveoli.

WikipediaRate this definition:1.0 / 1 vote

1. Respiratory tract

   The respiratory tract is the subdivision of the respiratory system involved with the process of respiration in mammals. The respiratory tract is lined with respiratory mucosa or respiratory epithelium.Air is breathed in through the nose to the nasal cavity, where a layer of nasal mucosa acts as a filter and traps pollutants and other harmful substances found in the air. Next, air moves into the pharynx, a passage that contains the intersection between the oesophagus and the larynx. The opening of the larynx has a special flap of cartilage, the epiglottis, that opens to allow air to pass through but closes to prevent food from moving into the airway. From the larynx, air moves into the trachea and down to the intersection known as the carina that branches to form the right and left primary (main) bronchi. Each of these bronchi branches into a secondary (lobar) bronchus that branches into tertiary (segmental) bronchi, that branch into smaller airways called bronchioles that eventually connect with tiny specialized structures called alveoli that function in gas exchange. The lungs which are located in the thoracic cavity, are protected from physical damage by the rib cage. At the base of the lungs is a sheet of skeletal muscle called the diaphragm. The diaphragm separates the lungs from the stomach and intestines. The diaphragm is also the main muscle of respiration involved in breathing, and is controlled by the sympathetic nervous system. The lungs are encased in a serous membrane that folds in on itself to form the pleurae – a two-layered protective barrier. The inner visceral pleura covers the surface of the lungs, and the outer parietal pleura is attached to the inner surface of the thoracic cavity. The pleurae enclose a cavity called the pleural cavity that contains pleural fluid. This fluid is used to decrease the amount of friction that lungs experience during breathing.

ChatGPTRate this definition:0.0 / 0 votes

1. respiratory tract

   The respiratory tract is the pathway through which air passes in order to facilitate breathing, beginning at the mouth or nose, continuing down the throat and windpipe, and ending in the lungs. It is divided into two main parts, the upper and lower respiratory tract, each with distinct functions and structures. This system supports the critical process of respiration, including inhalation of oxygen and the exhalation of carbon dioxide. It is also instrumental in maintaining body temperature and moisture levels.

WikidataRate this definition:0.0 / 0 votes

1. Respiratory tract

   In humans the respiratory tract is the part of the anatomy involved with the process of respiration. The respiratory tract is divided into 3 segments: ⁕Upper respiratory tract: nose and nasal passages, paranasal sinuses, and throat or pharynx ⁕Respiratory airways: voice box or larynx, trachea, bronchi, and bronchioles ⁕Lungs: respiratory bronchioles, alveolar ducts, alveolar sacs, and alveoli The respiratory tract is a common site for infections. Upper respiratory tract infections are probably the most common infections in the world. Most of the respiratory tract exists merely as a piping system for air to travel in the lungs, and alveoli are the only part of the lung that exchanges oxygen and carbon dioxide with the blood. Moving down the respiratory tract starting at the trachea, the tubes get smaller and divide into more and more tubes. There are estimated to be about 20 to 23 divisions, ending up at an alveolus. Even though the cross-sectional area of each bronchus or bronchiole is smaller, because there are so many, the total surface area is larger. This means there is less resistance at the terminal bronchioles.

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1. • Tract

How to pronounce respiratory tract?

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How to say respiratory tract in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of respiratory tract in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of respiratory tract in Pythagorean Numerology is: 1

Examples of respiratory tract in a Sentence

1. Sema Nickbakhsh:

   We believe respiratory viruses may be competing for resources in the respiratory tract.

2. Ryan Steele:

   Mucus is naturally occurring in our bodies, and it provides a very important function to maintain good health in our respiratory tract, it helps to capture [ allergens, bacteria and viruses ].

3. Xuhua Xia:

   The respiratory tract and the digestive tract -- they share the mouth as the common opening.

4. Bryan Bzdek:

   Masks help to filter out aerosol that is generated in our respiratory tract when we breathe or speak. ( They) are most effective at filtering out larger aerosol particles and less effective at filtering out the smallest ones, this is conceptually similar to driving a car when there are a lot of insects about -- the large ones tend to impact against the windshield whereas the small ones follow the air flow around the car.

5. Mark Slifka:

   Our bodies are not worried about the upper respiratory tract.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=respiratory tract
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Respiratory_Tract
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Respiratory_Tract
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=respiratory tract