Respiratory System Components and Functions

The second page details the partes del aparato respiratorio y sus funciones, explaining each component's role in breathing:

Definition: The primary function of the respiratory system is to capture oxygen from the air and transfer it to blood for cellular energy production.

The vías respiratorias are described in detail:

• Fosas nasales (Nasal passages): Warm and humidify incoming air
• Faringe (Pharynx): Contains defensive tonsils against pathogens
• Laringe (Larynx): Protected by the epiglottis during swallowing
• Tráquea (Trachea): Contains protective mucus and ciliated cells
• Bronquios y Bronquiolos: Branch into smaller airways leading to alveoli

Vocabulary: Mucus - protective fluid that traps foreign particles Example: The ciliated cells in the trachea act like tiny brushes, sweeping away trapped particles

Gas Exchange and Ventilation Process

The third page explains the intercambio gaseoso alveolar and ventilation mechanics:

Definition: Gas exchange occurs in the alveoli through diffusion, where gases move from areas of high concentration to low concentration.

The ventilation process consists of two phases:

1. Inspiration: Involving intercostal muscles and diaphragm contraction
2. Expiration: Relaxation of respiratory muscles leading to air expulsion

Highlight: The process of gas exchange is essential for maintaining cellular respiration and removing waste carbon dioxide.

Example: During inspiration, the diaphragm contracts and moves downward, increasing thoracic cavity volume and drawing air into the lungs.