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| 1 | nose | A nose is a nose is a nose. Smelling, tasting and breathing all start here. The size, location, mucous lining and tiny hairs (cilia) inside help prevent foreign objects to enter and to trap large air impurities before being drawn further into the respiratory system. Achooo! Out with the bad… bugs and carbon dioxide. |
| 2 | mouth* | Mouth breathing can also be remembered as ‘the big gulp’, or ‘plan ‘B” for air entry. Like the nose, it has many functions. It is the starting point of the digestive system as well as a secondary inhaler and exhaler. |
| 3 | larynx* | The larynx has three main functions: 1) a passageway for air, 2) a valve to close off the air passage from the digestive one (the epiglottis) like a hinged trap door, and 3) as a voice box. |
| 4 | lung | The lungs are the essential organs of respiration. The main function of the lungs is to exchange carbon dioxide for oxygen and vice versa. Each lung is enclosed separately within two membranes, like a balloon inside a bag inside a bag. |
| 5 | right bronchus ^^ | There are 2 main bronchi (Latin plural of bronchus): the right and left, each leading to a lung. If you accidentally breathe, or aspirate, a very small piece of food that gets past the trachea, it is most likely to fall and be pulled into the right main bronchus. If a peanut gets this far, what do you think could happen? |
| 6 | diaphragm | This muscular structure acts as a floor to the chest (thoracic) cavity as well as a roof to the abdomen. It helps to expand and contract the lungs, forcing air into and out of them. |
| 7 | pharynx* | The pharynx is shared with the digestive system from the tongue down to the epiglottis. Food goes on down the esophagus and air passes on through the trachea – but never both at the same time! |
| 8 | trachea* ^^ | This armored tube allows air to pass beyond the larynx to where it divides into the left and right bronchi. The protective ‘c’s of cartilage also provide protection to the digestive system’s esophagus right behind it. |
| 9 | left bronchus ^^ | The left one has a sharper bend due to the presence of the heart and major blood vessels directly underneath it. |
| 10 | bronchiole ^^ | Each bronchus divides and subdivides into smaller and smaller branches, the bronchioles, just like tree branches that get smaller as they grow up and out. By the time the air has reached here from outside, it has been warmed up to body temperature, filtered and moisturized. |
| 11 | alveoli | These tiny air cells, or sacs, are the ‘leaves’ of our respiratory tree. They resemble bunches of grapes and are the link between the respiratory and circulatory systems. Gas exchange happens here – I’ll trade you fresh oxygen (O2) for your used carbon dioxide (CO2). Now trace the route of the old air back out to the nose. |
| * | throat | The throat includes all the structures lying in front of the spinal column including the mouth, tongue, pharynx, tonsils, larynx and trachea. |
| ^^ | trachea, bronchi and bronchioles | These three portions of our airways also have rings of muscle along their length as well as glands lining them. These glands produce mucous that traps particles of dirt. Eventually, this sticky stuff and its trapped dirt are coughed up and cleared out. With asthma, these sensitive muscles tighten, making all the airways smaller and more difficult to breath through, and excessive mucus is produced, sometimes flooding the airways. |
Experiment: How do Your Lungs Work? Here is a simple project to show how your lungs work and how breathing happens. This lesson activity goes well with a study of anatomy, life science, and/or biology. https://www.lessontutor.com/km1/
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Embark on a breathtaking journey into the wonders of the respiratory system with this exclusive collection of 15 educational worksheets, perfect for students, teachers, and curious minds alike! This set provides a hands-on approach to learning, featuring a complete respiratory system with blank spaces for labeling, a detailed pair of lungs for identifying lobes, and a trachea with spaces to label cartilage rings. Whether it’s a fun addition to a classroom lesson or an engaging way to explore the marvels of human anatomy, these worksheets promise hours of informative and interactive learning!
Step into the fascinating world of the respiratory system, where science, anatomy, and discovery come together in a breathtaking adventure! This exclusive collection of 15 expertly designed, high-resolution PDF worksheets, perfectly formatted for A4 paper, is ideal for curious learners and science enthusiasts. Free to download and print, these and get ready for hours of engaging, breath-taking discovery for all.
Craft Ideas To Do With Respiratory System Worksheets
This set also includes cross-sections of the lungs and the respiratory system, complete with labeling blanks for enhanced learning. Detailed diagrams such as the larynx and vocal cords, bronchial tree branches, and oxygen exchange in alveoli allow for a deeper understanding of the respiratory system’s structure and function. Whether you prefer brain-teasing puzzles, interactive quizzes, or detailed activity sheets, this collection of Respiratory System worksheets offers endless educational fun.
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