10 Questions
What are the functions of the thoracic wall?
The functions of the thoracic wall include protecting all structures inside the thorax (e.g., heart and lungs) and providing a mechanical basis for breathing.
How many ribs do humans have?
Humans have 12 ribs.
What is the difference between true ribs and false ribs?
True ribs (ribs 1-7) attach directly to the sternum via costal cartilage, while false ribs (ribs 8-10) attach to the costal cartilage of the rib above to indirectly attach to the sternum.
What are floating ribs?
Floating ribs (ribs 11-12) have some costal cartilage at their tips but have no anterior attachment, allowing them to 'float' in the lower thoracic wall.
What forms the inferior border of the thoracic cage anteriorly?
The inferior aspects of lower costal cartilages (and the sternum) form the inferior border of the thoracic cage anteriorly.
What is the function of the thoracic wall?
The thoracic wall protects all structures inside the thorax and provides a mechanical basis for breathing.
How many ribs are there in total?
There are 12 ribs in total.
What is the difference between true ribs and false ribs?
True ribs (ribs 1-7) attach directly to the sternum via costal cartilage, while false ribs (ribs 8-10) attach indirectly to the sternum.
What are floating ribs?
Floating ribs (ribs 11-12) have some costal cartilage at their tips but have no anterior attachment to the sternum.
What forms the inferior border of the thoracic cage anteriorly?
The inferior aspects of the lower costal cartilages and the sternum form the inferior border of the thoracic cage anteriorly.
Test your knowledge on the anatomy of the thoracic walls and breast functions. Learn about the protective role of the thoracic wall and its contribution to breathing. Explore the structure of the rib cage and its attachment to the vertebrae and sternum.
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