What is the thoracic wall made of?

The thoracic wall is made up of five muscles: the external intercostal muscles, internal intercostal muscles, innermost intercostal muscles, subcostalis, and transversus thoracis.

What is the thoracic wall innervated by?

intercostal nerves
The intercostal nerves give anterior and lateral cutaneous branches to innervate the thorax and abdominal wall, muscular branches to supply the muscles of the thoracic wall, and they give rami communicantes or communicating branches that connect the intercostal nerves to a sympathetic trunk on the same side.

What supplies blood to the thoracic wall?

Lateral thoracic wall blood supply is from branches of the axillary artery (the thoracodorsal, lateral thoracic, and thoracoacromial arteries). Posterior thoracic wall blood supply is from dorsal branches of the posterior intercostal arteries and the dorsal scapular artery.

What are the neurovascular structures of the thoracic wall?

Running between every two adjacent ribs are anatomical spaces called intercostal spaces. There are eleven in total, each one containing the intercostal muscles (external, internal, and innermost) together with the intercostal neurovascular bundle. This consists of the intercostal vein, artery, and nerve.

What are the blood vessels in the thoracic wall?

1. Blood vessels and lymphatics of the thoracic wall Dr. Mohammed Mahmoud Mosaed 2. Intercostal Arteries and Veins • Each intercostal space contains a large single posterior intercostal artery and two small anterior intercostal arteries and anterior and posterior intercostal veins

Where does the venous drainage of the thorax come from?

They are supplied by several arteries of the thoracic wall, namely branches of the internal thoracic, axillary, lateral thoracic, thoracoacromial, and posterior intercostal arteries. The axillary and internal thoracic veins are responsible for venous drainage, while nervous supply is carried out by branches from the intercostal nerves.

Where does the blood supply from the thoracic cavity come from?

The thoracic wall or chest wall is a musculoskeletal structure that has a vast vascular supply. Most of the arteries of the thoracic cavity arise directly from the thoracic aorta; while others arise from its branches. On the other hand, the veins of the thoracic wall eventually coalesce to drain into the vena caval system .

Where are the intercostal arteries located in the thoracic wall?

Posterior Intercostal Arteries. The left aortic intercostals cross along the sides of the thoracic vertebrae, and are covered by the left lung and pleura. They are crossed anteriorly by the superior intercostal vein superiorly, and the hemiazygous and accessory hemiazygous vein inferiorly.