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Questions and Answers
What type of cartilage primarily forms the trachea?
What type of cartilage primarily forms the trachea?
- Hyaline cartilage (correct)
- Calcified cartilage
- Elastic cartilage
- Fibrocartilage
Which structure connects the nasopharynx to the trachea?
Which structure connects the nasopharynx to the trachea?
- Esophagus
- Bronchiole
- Larynx (correct)
- Alveoli
What is the name of the serous membrane that surrounds the lungs?
What is the name of the serous membrane that surrounds the lungs?
- Peritoneum
- Pericardium
- Pleura (correct)
- Endosteum
Into how many lobes is the right lung divided?
Into how many lobes is the right lung divided?
Where does the exchange of gases occur in the respiratory system?
Where does the exchange of gases occur in the respiratory system?
Flashcards
Nose
Nose
An airway with bony and cartilaginous parts.
Larynx
Larynx
A tube made of smooth muscle and cartilage connecting the nasopharynx to the trachea.
Trachea
Trachea
A tube of C-shaped cartilage that splits into two main bronchi at the carina.
Alveoli
Alveoli
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Pleura
Pleura
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Study Notes
- The nose has both bony and cartilaginous parts
Nasopharynx
- A space behind the nose that ends as the larynx
Larynx
- A tube formed of smooth muscle and hyaline cartilage
- Connects the nasopharynx with the trachea
Trachea
- A tube formed of C-shaped hyaline cartilage and a smooth muscle
- Ends in a bifurcation into two main bronchi called the Carina
- The bronchi subdivide into bronchioles
- Bronchioles end in sac-like structures called alveoli, which are the site of gas exchange
Lungs
- Surrounded by serous membrane called the Pleura
- The right lung consists of 3 lobes
- The left lung consists of 2 lobes
- The lungs lie inside the thoracic cage, which is formed by the sternum, ribs, and thoracic vertebrae
- Arterial blood reaches the lungs through the bronchial and pulmonary arteries
- Blood leaves the lungs through the pulmonary veins
Important Note
- Lung cancer is the first cause of death due to malignancy
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