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Medial Dorsal Cutaneous Branch of Tenth Posterior Intercostal Artery (Right)
Cardiovascular System

Medial Dorsal Cutaneous Branch of Tenth Posterior Intercostal Artery (Right)

Ramus cutaneus dorsalis medialis arteriae intercostalis posterioris decimae

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Origin

The lateral and medial dorsal cutaneous branches arise from the dorsal branches of the posterior intercostal arteries.

Course

The medial dorsal cutaneous branches follow the medial branches of the posterior rami of the corresponding thoracic nerves. They travel posteriorly, crossing the transverse processes of the adjacent vertebrae. They pass behind the longissimus and spinalis muscles, piercing the latissimus dorsi muscle to become superficial.

Branches

There are no name branches.

Supplied Structures

Along their course, the medial dorsal cutaneous branches of the = posterior intercostal arteries supply the longissimus thoracis and spinalis muscles, as well as the skin adjacent to the vertebral column.

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