Cards (57)

    • The trachea carries air to the bronchi
    • Gas exchange in the alveoli involves the exchange of oxygen and carbon dioxide between the air and the bloodstream
    • The diaphragm's contraction and relaxation drives the cycle of inhalation and exhalation.
      True
    • The trachea carries air from the nasal cavity to the bronchi.
      True
    • Ventilation is facilitated by the diaphragm's contraction and relaxation.

      True
    • Order the phases of ventilation based on muscle action, chest volume, lung pressure, and air movement.
      1️⃣ Inspiration: Diaphragm contracts, chest volume increases, lung pressure decreases, air enters
      2️⃣ Expiration: Diaphragm relaxes, chest volume decreases, lung pressure increases, air leaves
    • During inspiration, the diaphragm contracts, the intercostal muscles elevate the ribs, and the lung pressure decreases
    • What drives the movement of oxygen from the alveoli into the blood?
      Concentration gradients
    • Gas exchange occurs within the alveoli
    • How does a moist surface in the alveoli facilitate gas exchange?
      Dissolves gases
    • Which organ filters, warms, and humidifies incoming air?
      Nasal cavity
    • Which muscle facilitates breathing by contracting and relaxing?
      Diaphragm
    • Order the steps of air movement during inhalation and exhalation.
      1️⃣ Diaphragm contracts
      2️⃣ Chest volume increases
      3️⃣ Lung pressure decreases
      4️⃣ Air enters lungs
      5️⃣ Diaphragm relaxes
      6️⃣ Chest volume decreases
      7️⃣ Lung pressure increases
    • The diaphragm and intercostal muscles work together during ventilation.

      True
    • Order the events during inspiration:
      1️⃣ Diaphragm contracts
      2️⃣ Intercostal muscles contract and elevate ribs
      3️⃣ Chest volume increases
      4️⃣ Lung pressure decreases
      5️⃣ Air enters the lungs
    • What happens to lung pressure during expiration?
      Increases
    • Oxygen moves from the alveoli into the capillaries because of a concentration gradient.

      True
    • Match the respiratory disorder with its cause:
      Asthma ↔️ Allergens, pollutants, stress
      Bronchitis ↔️ Viral or bacterial infection
      Pneumonia ↔️ Lung infection
      Emphysema ↔️ Smoking, air pollution
    • What is the function of the nasal cavity in the respiratory system?
      Filters, warms, humidifies air
    • Which muscle contracts and relaxes to facilitate breathing?
      Diaphragm
    • What happens to the chest cavity volume during inhalation?
      It increases
    • What are alveoli in the respiratory system?
      Tiny air sacs
    • What is the primary function of the lungs?
      Facilitate breathing and gas exchange
    • What happens to lung pressure during exhalation?
      Increases
    • During expiration, the chest volume decreases as the diaphragm relaxes.

      True
    • Match the structural features of alveoli with their functions.
      Large Surface Area ↔️ Maximizes gas exchange
      Thin Walls ↔️ Allows rapid diffusion of gases
      Moist Surface ↔️ Facilitates dissolution of gases
    • Gas exchange in the alveoli relies on diffusion and concentration gradients.

      True
    • Thin walls in the alveoli allow for rapid diffusion of gases
    • A high concentration of oxygen in the air creates a concentration gradient
    • The bronchioles extend from the bronchi to the alveoli
    • Ventilation is facilitated by the contraction and relaxation of the diaphragm
    • During expiration, the diaphragm relaxes, causing lung pressure to increase
    • What two muscle groups are crucial for ventilation?
      Diaphragm and intercostal muscles
    • During expiration, the intercostal muscles contract.
      False
    • The increase in chest cavity volume during inspiration leads to a decrease in lung pressure.

      True
    • Match the structural feature of alveoli with its function:
      Large Surface Area ↔️ Maximizes gas exchange
      Thin Walls ↔️ Allows rapid diffusion
      Moist Surface ↔️ Enhances gas dissolution
    • Gas exchange in the alveoli relies on the principle of diffusion
    • What are the key symptoms of pneumonia?
      High fever, coughing, chest pain
    • What are the main organs of the respiratory system?
      Nasal cavity, trachea, bronchi
    • Gas exchange occurs in the alveoli of the lungs.

      True