Illustration of respiratory system
- 1 nostril
- 2 nose
- 3 nasal cavity
- 4 nasopharynx
- 5 oropharynx
- 6 larynx
- 7 trachea
- 8 bronchus
- 9 lung
respiratory system
noun
: a system of organs functioning in respiration and in humans consisting especially of the nose, nasal passages, pharynx, larynx, trachea, bronchi, and lungs : respiratory tract
Examples of respiratory system in a Sentence
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Sulfur dioxide and resulting vog (volcanic smog) can irritate eyes and respiratory systems, particularly in people with asthma and other chronic lung conditions, according to the Hawaii State Department of Health.
—
Daniel Orton, MSNBC Newsweek, 3 Sep. 2025
For instance, several studies indicate that 7-OH and mitragynine don’t depress the respiratory system like other opioids.7
Products marketed as kratom have increasingly high concentrations of 7-OH.
—Claire Bugos, Verywell Health, 14 Aug. 2025
Additionally, bleach can be harmful to your skin and respiratory system if not used properly.
—Daley Quinn, Southern Living, 11 Aug. 2025
Due to the way their respiratory systems are constructed, penguins are susceptible to aspergilliosis, caused by a common fungus (or mold) in the environment, Rettenmund said.
—Jim Higgins, jsonline.com, 31 July 2025
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Daniel Orton, MSNBC Newsweek, 3 Sep. 2025
For instance, several studies indicate that 7-OH and mitragynine don’t depress the respiratory system like other opioids.7
Products marketed as kratom have increasingly high concentrations of 7-OH.
—Claire Bugos, Verywell Health, 14 Aug. 2025
Additionally, bleach can be harmful to your skin and respiratory system if not used properly.
—Daley Quinn, Southern Living, 11 Aug. 2025
Due to the way their respiratory systems are constructed, penguins are susceptible to aspergilliosis, caused by a common fungus (or mold) in the environment, Rettenmund said.
—Jim Higgins, jsonline.com, 31 July 2025
See All Example Sentences for respiratory system
Cite this Entry
“Respiratory system.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/respiratory%20system. Accessed 7 Sep. 2025.
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