Respiratory System Flashcards
How does the RS contribute to homeostasis?
By exchanging gases, Carbon Dioxide and oxygen
What ways does the RS gas exchange?
Through blood, atmospheric air, and tissue cells
What systems supply oxygen and eliminate CO2?
The Cardiovascular system and Respiratory system
What system regulates the body’s pH?
Cardiovascular system
What are the steps of respiration
Pulmonary ventilation
External respiration
Internal respiration
Pulmonary ventilation
The inflow and outflow of air (gas exchange)
External respiration
The exchange of gases between the pulmonary alveoli and the blood in pulmonary capillaries
Pulmonary capillary gas exchange looks like…
Hint chemicals
Gains oxygen and looses carbon dioxide
Internal respiration
Exchange of gases between blood in systemic capillaries and tissue cells.
Internal respiration gas’s exchanges look like…
Blood looses oxygen and gains carbon dioxide
What influences rate of airflow
Alveolar surface tension, compliance, and airway resistance
Boyle’s Law
The inverse relation of volume and pressure
2 different types of inhalation pressures
Intrapleural pressure
Alveolar pressure
Intrapleural pressure
Decreasing pressure between the parietal pleural membrane and the visceral pleural membrane
Alveolar pressure
Intrapulmonic pressure inside the lungs caused by space growing for lungs to expand
How do lungs heal?
Lungs are self-healing
Where does gas exchange take place?
In the Alveolus, Alveolar sacs
The lungs have 2 types of epithelial tissues. What are they?
Dust cells and Septal cells
Dust cells
Macrophages responsible for cleaning out dust in the lungs.
Dust cell make up cell type and how does this help gas exchange?
Simple squamous covered by basement membrane. Gas can travel easily across
Septal cells
Secretes lubricant inside the lungs calls surfactant
Pulmonary circulation
Is where blood enters and exists the lungs
Ventilation-perfusion coupling
Blood flow to each area of the lungs matches extent of airflow to the alveoli in the lungs
