40 Questions
Which structure is responsible for the primary gas exchange in the respiratory tract?
Alveoli
What is the approximate number of alveoli in our lungs?
300 million
What is the function of the bronchi?
Distributing air to the lungs
What is the function of the alveoli?
Gas exchange
What is the role of surfactant in the alveoli?
Reducing surface tension
Which structure forms the wall of the alveoli?
A single layer of cells
What is the barrier through which gases exchange between the alveolar air and blood capillaries called?
Respiratory membrane
What helps keep the alveoli open?
Cartilaginous rings
What is the function of mucus in the respiratory tract?
Cleansing air
What is the role of capillaries in the lungs?
Gas exchange
Which structure holds up the main structure of the trachea?
C-shaped cartilage rings
What is the function of the trachea?
To direct air into the lungs
What is the name of the tube that extends from the larynx to the primary bronchi?
Trachea
What is the diameter of the trachea?
2.5cm
Which part of the respiratory system expels mucus upward toward the pharynx?
Respiratory mucosa with goblet cells
How many levels of divisions are there in the bronchial tree?
23
What is the main site of gas exchange in the lung?
Alveolar sacs
Which bronchus is slightly larger and more vertical?
Right bronchus
What is the last conducting portion of the respiratory system?
Terminal bronchioles
What is the function of the bronchi?
To direct air into the lungs
Which structure forms the wall of the trachea?
Cartilage rings
What is the function of the bronchioles?
To divide into alveolar sacs
What is the function of the alveoli?
To facilitate gas exchange
What is the role of the capillaries in the lungs?
To facilitate gas exchange
What is the approximate length of the trachea?
11 cm
What is the role of surfactant in the alveoli?
To reduce surface tension
What is the function of the respiratory bronchioles?
To facilitate gas exchange
What is the function of the goblet cells in the trachea?
To expel mucus upward toward the pharynx
What is the function of the primary bronchi?
To direct air into and out of the lungs
What is the function of the trachea?
To direct air through an open passageway into and out of the lungs
Which structure in the respiratory tract is responsible for efficient gas exchange due to its thin walls?
Bronchioles
What is the function of the respiratory membrane?
To exchange gases between the alveolar air and blood capillaries
What is the purpose of surfactant in the alveoli?
To reduce surface tension and prevent collapse of the alveoli
What is the primary function of the bronchi?
To distribute air to the lungs interior
What is the approximate number of alveoli estimated to be in our lungs?
300 million
What is the function of the cartilaginous rings in the respiratory system?
To provide structural support
What is the role of the capillaries in the lungs?
To facilitate gas exchange with the alveoli
What is the role of mucus in the respiratory tract?
To cleanse, warm, and humidify air
What is the last conducting portion of the respiratory system before reaching the alveoli?
Bronchioles
What provides structural support to keep the alveoli open?
Cartilaginous rings
Test your knowledge about the trachea with this quiz! Learn about its structure, location, and function, and challenge yourself with questions on cartilage rings, connective tissue, and more.
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