2023-07-26T18:10:52+03:00[Europe/Moscow] en true <p><strong>Respiratory system&nbsp;is composed of what?</strong></p><p></p><p></p><p></p><p></p><p></p>, <p>what is the Function of the respiratory system </p>, <p><strong>Upper respiratory tract&nbsp;is </strong></p><p></p>, <p><strong>Lower respiratory tract</strong></p>, <p><strong>Gas exchange</strong> occurs <strong>in</strong> the<strong> &nbsp;</strong></p>, <p>Each alveolus gets _____</p>, <p><strong>Inhaled air has</strong></p>, <p><strong>Blood passing over the alveolus has </strong></p>, <p>The<strong> large number</strong> of<strong> alveoli </strong>and their <strong>round shape create</strong> </p><p></p>, <p><strong>Breathing</strong> can be described as</p> flashcards
respiratory system

respiratory system

  • Respiratory system is composed of what?

    Composed of the conducting passages of the nose and throat and lungs

  • what is the Function of the respiratory system

    to exchange gases with the blood

    Oxygen (O2) enters with inhalation

    CO2 leaves with exhalation 

  • Upper respiratory tract is

    Nostrils → nasal cavity (warmed, humidified, filtered) →  pharynx (throat)   glottis (entrance of the respiratory system →  larynx > vocal folds 

  • Lower respiratory tract

    Trachea bronchi (right and left) → bronchioles (finer passages that get smaller and branch out → alveoli (functional part of RS)

  • Gas exchange occurs in the  

    Alveoli

  • Each alveolus gets _____

    a capillary over it

  • Inhaled air has

    higher O2 than blood

  • Blood passing over the alveolus has

    higher CO2 than air

  • The large number of alveoli and their round shape create

    a lot of surface area for gas exchange 

  • Breathing can be described as

    contractions of the diaphragm and rib muscles increase the volume of the thoracic cavity resulting in an inhalation