Respiratory System Anatomy

• What are the key organs of the respiratory system and their functions?

  • Nose: Filters and warms incoming air
  • Throat (Pharynx): Passageway for air and food
  • Trachea (Windpipe): Conducts air to the lungs
  • Bronchi: Transport air to each lung
  • Lungs: Gas exchange (oxygen and carbon dioxide)
• What is the first key organ of the respiratory system?

  Nose
• What is the function of the trachea in the respiratory system?

  Conducts air to the lungs
• What are the steps involved in gas exchange in the lungs?

  1. Inhale air through nose and trachea
  2. Air travels to bronchi and alveoli
  3. Oxygen diffuses into bloodstream
  4. Carbon dioxide diffuses into alveoli
  5. Exhale carbon dioxide-rich air
• How does air travel through the respiratory system?

  Air enters through the nose, then to trachea and bronchi
• What are the tiny blood vessels surrounding alveoli called?

  Capillaries
• What is the primary function of the respiratory system?

  Breathing
• What drives the movement of gases during diffusion?

  Concentration gradient
• What is the function of the nose in the respiratory system?

  Filters and warms incoming air
• What is the third key organ of the respiratory system?

  Trachea (Windpipe)
• What is the primary function of the respiratory and circulatory systems together?

  To transport oxygen and remove carbon dioxide
• What is the second key organ of the respiratory system?

  Throat (Pharynx)
• What occurs in the lungs during respiration?

  Gas exchange (oxygen and carbon dioxide)
• What is the primary function of the alveoli?

  Gas exchange
• What happens to oxygen during inhalation?

  It diffuses into the bloodstream from alveoli
• What is the first step in the process of breathing?

  Air enters through the nose and trachea
• Where does oxygen exchange occur in the respiratory system?

  In the lungs
• What is the fifth key organ of the respiratory system?

  Lungs
• What are the main organs of the respiratory system?

  • Nose
  • Throat
  • Trachea
  • Bronchi
  • Lungs
• What role does the throat (pharynx) play in the respiratory system?

  Acts as a passageway for air and food
• What is the role of the bronchi in the respiratory system?

  Transport air to each lung
• What is the fourth key organ of the respiratory system?

  Bronchi
• What occurs to carbon dioxide during exhalation?

  It diffuses from the bloodstream into the alveoli
• What are the tiny air sacs in the lungs called?

  Alveoli
• What is the mechanism that allows gas exchange to occur?

  Diffusion
• What is the process of breathing out called?

  Exhale
• What are the tiny air sacs called where gas exchange occurs?

  Alveoli
• How do the bronchi and pleura work together in the lungs?

  Bronchi deliver air; pleura protect lungs
• What is the relationship between oxygen and carbon dioxide in the respiratory process?

  Oxygen is taken in, carbon dioxide is released
• What surrounds the lungs for protection?

  Pleura
• What happens to carbon dioxide in the blood during respiration?

  It diffuses into the alveoli to be exhaled
• What is gas exchange?

  How oxygen enters blood and carbon dioxide exits
• What carries oxygen to all parts of the body?

  Blood in the capillaries
• What is the process of gas exchange in the lungs?

  1. You breathe in, filling the alveoli with air.
  2. Oxygen moves from alveoli into capillaries.
  3. Carbon dioxide moves from capillaries into alveoli.
  4. You breathe out, expelling carbon dioxide.
• What are the lungs classified as?

  Paired organs
• What two systems work together to transport oxygen?

  Respiratory and circulatory systems
• How do the respiratory and circulatory systems maintain homeostasis?

  • Ensures constant oxygen supply
  • Removes carbon dioxide effectively
  • Balances gas exchange for cellular functions
• Where does oxygen move from in the lungs?

  From the alveoli into capillaries
• How does oxygen move during gas exchange?

  From alveoli into the blood in capillaries
• How do the bronchi function in the respiratory system?

  They deliver air to the alveoli