6.3: Anatomy & Physiology: Respiratory System 🫁 Flashcards
Respiratory System
Brings in oxygen and releases carbon dioxide. It also helps regular pH levels.
Upper Airway
- Nose & Mouth
- Nasopharynx
- Oropharynx
- Larynx
- Epiglottis
Upper Airway: Nasopharynx
The upper part of the throat is behind the nose. (think of naso as nasal)
Upper Airway: Oropharynx
The area of the throat behind the mouth. (think of oro as oral/mouth)
Upper Airway: Larynx
Voice Box.
Upper Airway: Epiglottis
The valve that protects the opening of the trachea.
Pharynx
The throat.
FBAO
Foreign-body airway obstruction.
Lower Airway
- Trachea
- Carina - (kuh-ree-nuh)
- Left & Right Bronchi
- Bronchioles - (brawk-ee-oles)
- Alveoli - (al-vee-uh-lie)
Lower Airway: Trachea
Long tube (aka windpipe) that connects the Larynx to the Bronchi
Lower Airway: Carina (kuh-ree-nuh)
Where the trachea branches into the left and right into the bronchi.
Lower Airway: Bronchi (brawnk-eye)
Tubes that lead the trachea to both lungs.
Lower Airway: Bronchioles (brawnk-ee-oles)
Small branches of the Bronchi. (think mini)
Lower Airway: Alveoli (al-vee-uh-lie)
Tiny air sacs of the lungs that exchange oxygen and carbon dioxide.
Pleura
Two thin, smooth layers of tissue with a thin film of fluid between the lungs.
Visceral Pleura
Lines the outer surface of the lungs.
Parietal Pleura
Lines the inside surface of the chest cavity.
Diaphragm
The primary muscle of the respiration. Contracts during inhalation, moves down, and allows the chest to expand.
Tidal Volume
The amount of air inhaled or exhaled in one breath.
Residual Volume
The amount of air in the lungs after completely exhaling.
Inspiratory/Expiratory Reserve Volume
The amount of air you can still inhale or exhale after a normal breath.
Minute Volume
Respiratory Rate x Tidal Volume
