Podcast
Questions and Answers
Which structure is NOT part of the skeleton of the thoracic wall?
Which structure is NOT part of the skeleton of the thoracic wall?
- Clavicle (correct)
- Costal cartilages
- Thoracic vertebrae
- Ribs
What is the function of the suprapleural membrane?
What is the function of the suprapleural membrane?
- Roofing the thoracic cavity (correct)
- Protecting the heart
- Assisting in breathing
- Flooring the thoracic cavity
Which part of the sternum is commonly used for marrow biopsy?
Which part of the sternum is commonly used for marrow biopsy?
- Manubrium
- Body
- Xiphoid process (correct)
- None of the above
What is the purpose of a median sternotomy?
What is the purpose of a median sternotomy?
Which muscles are located in the paravertebral gutter and cross more than one intercostal space?
Which muscles are located in the paravertebral gutter and cross more than one intercostal space?
Where are the subcostal muscles attached?
Where are the subcostal muscles attached?
What is the location of the subcostal muscles?
What is the location of the subcostal muscles?
Study Notes
Thoracic Wall Structures
- Thoracic wall structures: Ribs, sternum, costal cartilages, and vertebrae.
Suprapleural Membrane
- Suprapleural membrane attaches to the first rib and transverse processes of the cervical vertebrae.
- Function: It supports the apex of the lung, separating it from the neck.
Sternum
- Marrow biopsy: Commonly performed on the sternal body due to its accessibility.
Median Sternotomy
- Median sternotomy is a surgical procedure that involves the splitting of the sternum.
- Purpose: Provides access to the heart and great vessels for procedures like open heart surgery.
Paravertebral Gutter Muscles
- Paravertebral gutter: Location of muscles that span multiple intercostal spaces.
- Muscles: Serratus posterior superior and serratus posterior inferior.
Subcostal Muscles
- Subcostal muscles: Located on the internal surface of the ribs.
- Attachment: Extend from the internal surface of a rib to the internal surface of the second or third rib below.
- Location: Inferior to the intercostal muscles.
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Description
Test your knowledge on the anatomy of the thoracic wall and sternum with this quiz. Learn about the structure and function of the thoracic vertebrae, ribs, costal cartilages, and sternum. Explore the suprapleural membrane and the role of the diaphragm in the thoracic cavity. Discover the different parts of the sternum and its significance as a site for marrow biopsy.
