14 Questions
The opening bounded by the 12th thoracic vertebra, curving costal margin, and xiphisternal joint is closed by which structure?
Diaphragm
Which of the following muscles are present in each intercostal space?
External intercostal, internal intercostal, and innermost intercostal
What is the relationship between the intercostal nerves and the intercostal muscles?
The intercostal nerves supply the intercostal muscles, skin, and parietal pleura/peritoneum
What is the relationship between the intercostal nerves and the intercostal neurovascular bundle?
The intercostal nerves are located within the intercostal neurovascular bundle
What is the function of the external intercostal muscles?
To pull the ribs closer together
Where is the endothoracic fascia located?
Between the muscles and bones of the thoracic wall and the parietal pleura
What is the order of structures in the intercostal neurovascular bundle from top to bottom?
Vein, Artery, Nerve
Which thoracic spinal nerves supply the anterior abdominal wall?
Thoracic nerves 7-11
Where does the anterior ramus of the 12th thoracic nerve run?
Forward in the abdomen as the subcostal nerve
What is the unique feature of the first thoracic nerve compared to the other thoracic nerves?
It has no anterior cutaneous branch
What is the name of the bony framework that forms the walls of the thorax?
Thoracic cage
What is the shape of the thorax?
Flattened in front and back, but rounded on the sides
What structure forms the posterior part of the thoracic cage?
Vertebral column
What structure occupies the opening at the superior end of the thorax?
Structures that pass between the neck and thorax
Explore the anatomy of the thoracic wall and intercostal space, which form the bony framework of the thorax. Learn about the structures involved and their boundaries in this region of the body.
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