The anatomy and function of the respiratory systemencompasses vital... Show more
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1
B
Bella
10/22/2025
Health
Respiratory System Anatomy (Gr.10)
29
•
Oct 22, 2025
•
How Your Lungs Work: Breathing and the Respiratory System
B
Bella
@twerkbeast3000
1 / 4
Respiratory Tract Components
The respiratory tract consists of several specialized structures that work together to facilitate breathing. Each component has specific functions essential for proper respiratory operation.
Definition: The pharynx serves as a common passageway for both food and air, divided into three distinct parts: nasopharynx, oropharynx, and laryngopharynx.
Highlight: The epiglottis acts as a crucial protective mechanism, preventing food and liquids from entering the respiratory tract during swallowing.
The lungs are asymmetrically divided:
- Right lung contains three lobes (superior, middle, inferior)
- Left lung has two lobes (superior and inferior)
Vocabulary: Bronchioles are the smallest branches of the bronchi, terminating in alveoli where gas exchange occurs.
Breathing Process
The process of breathing in the human body involves complex mechanical and chemical processes working in harmony.
Definition: Ventilation consists of two phases: inspiration (inhalation) and expiration (exhalation).
Highlight: During inspiration, the diaphragm and intercostal muscles contract to create a vacuum effect, drawing air into the lungs.
The respiratory process includes:
- External respiration (gas exchange between lungs and bloodstream)
- Internal respiration (gas exchange between bloodstream and tissue cells)
- Cellular respiration (energy production using oxygen)
Example: Think of breathing like a balloon - when you pull the balloon open (like the diaphragm contracting), air rushes in; when you release it (like the diaphragm relaxing), air flows out.
Respiratory Diseases
Various respiratory diseases and their symptoms can affect different parts of the respiratory system, ranging from mild to severe conditions.
Definition: COPD (Chronic Obstructive Pulmonary Disease) refers to any chronic lung disease causing airway obstruction, with smoking being the primary cause.
Highlight: Respiratory infections can affect either the upper respiratory tract (like common colds) or lower respiratory tract (like pneumonia).
Common respiratory conditions include:
- Asthma (characterized by bronchospasms)
- Bronchitis (inflammation of bronchi)
- Tuberculosis (infectious lung disease)
- Pleurisy (inflammation of pleura)
Vocabulary: Epistaxis refers to nosebleeds, occurring when nasal capillaries become congested and rupture.
Respiratory System Anatomy
The respiratory system begins with the nasal cavities and extends through various structures to the lungs. The nasal area contains several important components that aid in breathing and air filtration.
Definition: The nasal cavities are two hollow spaces in the nose that serve as the primary entrance for air into the respiratory system.
Highlight: The mucous membrane lining the nasal cavities produces mucus that moistens incoming air and traps harmful particles.
Vocabulary: Cilia are microscopic hair-like structures that move in a coordinated manner to push trapped particles towards the pharynx.
The sinuses play multiple roles in respiratory function, including:
- Air warming and moistening
- Voice resonance enhancement
- Protection of surrounding tissues
Example: The mucus and cilia work together like a microscopic conveyor belt, continuously moving trapped particles away from the lungs.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
How Your Lungs Work: Breathing and the Respiratory System
B
Bella
@twerkbeast3000
The anatomy and function of the respiratory system encompasses vital organs working together to facilitate breathing and gas exchange, ensuring survival through oxygen intake and carbon dioxide removal.
- The respiratory tract consists of multiple interconnected structures including the nose, pharynx,... Show more
Respiratory Tract Components
The respiratory tract consists of several specialized structures that work together to facilitate breathing. Each component has specific functions essential for proper respiratory operation.
Definition: The pharynx serves as a common passageway for both food and air, divided into three distinct parts: nasopharynx, oropharynx, and laryngopharynx.
Highlight: The epiglottis acts as a crucial protective mechanism, preventing food and liquids from entering the respiratory tract during swallowing.
The lungs are asymmetrically divided:
- Right lung contains three lobes (superior, middle, inferior)
- Left lung has two lobes (superior and inferior)
Vocabulary: Bronchioles are the smallest branches of the bronchi, terminating in alveoli where gas exchange occurs.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Breathing Process
The process of breathing in the human body involves complex mechanical and chemical processes working in harmony.
Definition: Ventilation consists of two phases: inspiration (inhalation) and expiration (exhalation).
Highlight: During inspiration, the diaphragm and intercostal muscles contract to create a vacuum effect, drawing air into the lungs.
The respiratory process includes:
- External respiration (gas exchange between lungs and bloodstream)
- Internal respiration (gas exchange between bloodstream and tissue cells)
- Cellular respiration (energy production using oxygen)
Example: Think of breathing like a balloon - when you pull the balloon open (like the diaphragm contracting), air rushes in; when you release it (like the diaphragm relaxing), air flows out.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Respiratory Diseases
Various respiratory diseases and their symptoms can affect different parts of the respiratory system, ranging from mild to severe conditions.
Definition: COPD (Chronic Obstructive Pulmonary Disease) refers to any chronic lung disease causing airway obstruction, with smoking being the primary cause.
Highlight: Respiratory infections can affect either the upper respiratory tract (like common colds) or lower respiratory tract (like pneumonia).
Common respiratory conditions include:
- Asthma (characterized by bronchospasms)
- Bronchitis (inflammation of bronchi)
- Tuberculosis (infectious lung disease)
- Pleurisy (inflammation of pleura)
Vocabulary: Epistaxis refers to nosebleeds, occurring when nasal capillaries become congested and rupture.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Respiratory System Anatomy
The respiratory system begins with the nasal cavities and extends through various structures to the lungs. The nasal area contains several important components that aid in breathing and air filtration.
Definition: The nasal cavities are two hollow spaces in the nose that serve as the primary entrance for air into the respiratory system.
Highlight: The mucous membrane lining the nasal cavities produces mucus that moistens incoming air and traps harmful particles.
Vocabulary: Cilia are microscopic hair-like structures that move in a coordinated manner to push trapped particles towards the pharynx.
The sinuses play multiple roles in respiratory function, including:
- Air warming and moistening
- Voice resonance enhancement
- Protection of surrounding tissues
Example: The mucus and cilia work together like a microscopic conveyor belt, continuously moving trapped particles away from the lungs.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user