16 Questions
What is the shape of the thorax?
Irregularly shaped cylinder
What closes the inferior thoracic aperture?
The diaphragm
How many major compartments are there in the thoracic cavity?
Three
What is the orientation of the mediastinum in the thoracic cavity?
Longitudinal
What is the significance of the pleural cavities extending above the level of rib I?
The apex of each lung extends into the root of the neck
Why can the mediastinum be entered surgically without opening the pleural cavities?
Because the pleural cavities are completely separated from each other
What is the main function of the diaphragm in the thorax?
To close the inferior thoracic aperture
What is the relationship between the pleural cavities?
They are completely separated from each other
Which structure is NOT part of the musculoskeletal wall of the thorax?
Diaphragm
What is the position of the apex of each lung?
Above the level of rib I
What is the orientation of the thoracic cavity?
Irregularly shaped cylinder
What is contained within the mediastinum?
Heart, esophagus, trachea, major nerves, and major systemic blood vessels
Why are abnormal events in one pleural cavity unlikely to affect the other cavity?
Because the mediastinum separates the pleural cavities
What is the shape of the superior thoracic aperture?
Narrow opening
What is the function of the musculoskeletal wall of the thorax?
To provide flexibility to the thorax
What is the significance of the mediastinum?
It allows surgical entry without opening the pleural cavities
Learn about the structure and features of the thorax, including its shape, openings, and musculoskeletal walls. Understand the superior and inferior thoracic apertures and their relations to the neck and diaphragm. Test your knowledge of the thoracic cavity and its components!
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