About 1,600,000 results
Open links in new tab
  1. Respiratory System: Organs, Facts, Anatomy & Function

    Apr 9, 2024 · Your respiratory system is made up of your lungs, airways, pharynx, larynx, nose and mouth. Its main function is to breathe in oxygen and breathe out carbon dioxide.

  2. Human respiratory system | Description, Parts, Function, & Facts ...

    Dec 5, 2025 · Human respiratory system, the system in humans that takes up oxygen and expels carbon dioxide. The major organs of the respiratory system include the nose, pharynx, larynx, trachea, …

  3. Respiratory system - Wikipedia

    The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants.

  4. Overview of the Respiratory System - The Merck Manuals

    The main purpose of the respiratory system is to take in oxygen and eliminate carbon dioxide through the lungs. Oxygen, which is in the air, is breathed into the lungs (inhaled). Oxygen is necessary for …

  5. Understanding the Respiratory System: Functions, Anatomy, and …

    May 10, 2025 · The respiratory system is far more than just lungs. It’s an elaborate network of organs and tissues that orchestrates a delicate balance between the external world and our internal needs.

  6. Respiratory Illnesses - NYC Health

    Respiratory illnesses like COVID-19, flu, and RSV can spread through sneezing, coughing, and talking and can make you feel tired, feverish, and congested. They are more common in fall and winter …

  7. Respiratory system: Anatomy and functions | Kenhub

    Oct 30, 2023 · The main function of the respiratory system is pulmonary ventilation, which is the movement of air between the atmosphere and the lung by inspiration and expiration driven by the …

  8. Respiratory system anatomy and physiology | Khan Academy

    With every inhale, air rushes through your windpipe to your lungs. After 20 to 30 branch points, oxygen diffuses into the liquid around the alveoli and slips into your blood. Carbon dioxide travels from the …

  9. How the Lungs Work - The Respiratory System | NHLBI, NIH

    Mar 24, 2022 · Learn how the respiratory system works and what happens when you breathe in and out.

  10. Respiratory System: Functions and Organs - WebMD

    Jan 8, 2024 · The respiratory system is the organs and other parts of your body involved in breathing, when you exchange oxygen and carbon dioxide. All the cells in your body need oxygen to work.