Lower Respiratory Tract Anatomy Labeling Quiz and Flashcards

What is the role of intrapleural pressure (Pip) in the respiratory system?

What is the purpose of pleural fluid in the respiratory system?

What condition can result from the accumulation of fluid in the pleural cavity?

During an asthma attack, what happens to the bronchioles?

Which structure in the respiratory system contracts during coughing?

Which part of the respiratory system is composed of ciliated pseudostratified epithelium with goblet cells?

In the conducting zone of the lower respiratory system, what replaces cartilage as branching continues?

Which type of epithelium is typically found in the respiratory zone of the lungs?

What type of blood vessels provide oxygenated blood from the aorta to lung tissue?

'Going down the wrong pipe' in the respiratory system usually triggers a cough reflex due to irritation of which structure?

Respiratory System Mechanics

Intrapleural pressure (Pip) helps to expand the lungs during inhalation and deflate them during exhalation.

Pleural Fluid Function

Pleural fluid reduces friction between the lungs and chest cavity, allowing for smooth movement during breathing.

Pleural Cavity Complications

Accumulation of fluid in the pleural cavity can lead to pleural effusion, a condition that impairs lung expansion.

Asthma Attack Effects

During an asthma attack, bronchioles constrict, reducing airflow and increasing resistance to breathing.

Coughing Mechanism

The diaphragm contracts during coughing, forcing air out of the lungs to expel irritants.

Respiratory Tract Epithelium

The trachea and bronchi are lined with ciliated pseudostratified epithelium with goblet cells, which helps to filter and humidify the air.

Conducting Zone Anatomy

As the bronchi branch, smooth muscle replaces cartilage to provide structural support.

Respiratory Zone Characteristics

The respiratory zone of the lungs is composed of simple squamous epithelium, which allows for efficient gas exchange.

Lung Blood Supply

Oxygenated blood from the aorta is delivered to lung tissue through bronchial arteries.

Cough Reflex Trigger

Irritation of the epiglottis, which separates the trachea from the esophagus, usually triggers a cough reflex when food or liquids "go down the wrong pipe".

Test your knowledge of the lower respiratory tract anatomy, focusing on the structure and functions of the trachea. Identify the different layers and components of the trachea, including the mucosa, submucosa, and trachealis muscle, and understand their roles in the respiratory system.