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Respiratory System Anatomy Quiz

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Questions and Answers

What is the shape of the lungs?

Round

Conical (correct)

Square

Pyramidal

Where does the trachea bifurcate?

At the arch of the aorta (correct)

At the apex of the lung

In the alveolar sac

At the base of the lung

Where does the trachea divide into?

The right and left main stem bronchi (correct)

The right and left secondary bronchi

The right and left tertiary bronchi

The right and left quaternary bronchi

What is the difference between the right and left main stem bronchi?

The right is larger and the left is curved Signup and view all the answers

What is the longest of the two primary bronchi?

Left main stem bronchus Signup and view all the answers

How many alveolar ducts are there in the respiratory bronchioles?

2-11 Signup and view all the answers

How many terminal bronchioles are there in the respiratory bronchioles?

Millions Signup and view all the answers

What is the structure that attaches each lung to its pleura?

Pulmonary ligament Signup and view all the answers

Which main stem bronchus is shorter and straighter?

The right Signup and view all the answers

How many alveolar ducts divide from each bronchiole?

11 Signup and view all the answers

What shape are the lungs?

Conical Signup and view all the answers

What is the shape of the lungs?

Conical Signup and view all the answers

What is the attachment of the lungs to its pleura?

Attached only by its root and the pulmonary ligament Signup and view all the answers

What is the most likely place for a foreign body to lodge?

Right main stem bronchus Signup and view all the answers

What is the pulmonary ligament responsible for?

Attaching the lungs to the pleura Signup and view all the answers

Study Notes

The trachea divides into right and left primary bronchi. - The right main stem bronchus is the shorter, straighter, and larger of the two. - The left main stem bronchus is the longer, curved, and smaller of the two. - The trachea bifurcates behind the arch of the aorta, and the right and left primary bronchi divide dichotomously. - There are millions of terminal bronchioles in the respiratory bronchioles, and each bronchioles divides into 2-11 alveolar ducts. - The primary bronchi enter the alveolar sac and the right main stem bronchus goes directly to the lungs, while the left main stem bronchus divides into two smaller branches, one of which goes to the lungs. - Foreign bodies are more apt to lodge in the right main stem bronchus because it is shorter and straighter.
The lungs are conical in shape and have an apex and a base.
Each lung is attached to its pleura only by its root and the pulmonary ligament.
The lungs lie free within their pleural cavities.

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Description

Test your knowledge of the anatomy of the respiratory system with this quiz. Questions cover the structure and branching of the trachea and primary bronchi, as well as details about the lungs and their attachment to the pleura.