Respiratory system Flashcards
The Upper Respiratory Tract consists of
- Nose
- Nasal Cavity
- Pharynx
In the Respiratory mucosa, the cilia move
Contaminated mucus posteriorly to throat
The Respiratory mucosa warms inspired air with the use of
Capillaries and veins
What triggers sneezing in the Respiratory mucosa?
Sensory nerve ending
What are the three parts of the Pharynx?
- Nasopharynx
- Oropharynx
- Laryngopharynx
What is the Nasopharynx?
Airway posterior to nasal cavity
What happens to the Nasopharynx during swallowing?
It is closed by the soft palate and uvula
What is the Oropharynx?
Passageway for food and air
What is the Laryngopharynx?
Passageway for food and air
The Laryngopharynx is continuous with
Larynx and esophagus
The Lower Respiratory Tract consists of
- Larynx
- Trachea
- Bronchi
The Larynx is attached to the
Hypoid Bone
The Larynx opens up into the
Laryngopharynx
The Larynx is continuous with the
Trachea
What is the function of the Larynx?
- Provides patent airway
- Routes air and food
- Voice production
The Trachea is known as the
Windpipe
The Trachea wall is composed of
Three layers
The innermost wall of the Trachea contains
Ciliated epithelium with goblet cells
What contracts during coughing to expel mucus?
Trachealis
What is the Carina?
Point where trachea branches into two main bronchi
What is the Pleura?
The serous membrane that lines the outer surfaces of the lung and adjacent internal thoracic wall
What are the steps of Respiration?
- Pulmonary Ventilation
- Alveolar Gas Exchange
- Gas Transport
- Systemic Gas Exchange
What does Boyle’s Law State and what is it?
The pressure of a gas varies inversely with its volume
P1V1 = P2V2
What are the two mechanics of respiration?
- Inspiration
- Expiration
